Radovanović, Milan

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  • Radovanović, Milan (9)

Author's Bibliography

Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing

Nikolić, Maria Vesna; Krstić, Jugoslav; Labus, Nebojša; Luković, Miloljub; Dojčinović, Milena; Radovanović, Milan; Tadić, Nenad B.

(Elsevier, 2020)

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Krstić, Jugoslav
AU  - Labus, Nebojša
AU  - Luković, Miloljub
AU  - Dojčinović, Milena
AU  - Radovanović, Milan
AU  - Tadić, Nenad B.
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/8950
AB  - Iron manganite (FeMnO3) powder with a cubic (bixbyite,−Ia3) crystal structure was obtained by a solid statereaction. Thick film paste (powder+organic vehicles) was screen printed on alumina substrate with test interdigitatedPdAg electrodes. Significant porosity (60.6%) composed of macropores (larger than 100 nm) wasdetermined by Hg porosimetry, changing only slightly from the first extrusion run indicating a stable poresystem. Hg porosimetry evaluation of thick film samples enabled estimation of true textural parameters of thethick film compared to powder. Impedance response of the thick film sensor was monitored in a humiditychamber in the relative humidity (RH) range 30–90%, at room temperature (25 °C) and frequency range from42 Hz to 1 MHz. At 100 Hz the impedance reduced from 10.41 MΩ for RH 30% to 0.68 MΩ for RH 90%. Analysisof complex impedance using an equivalent circuit showed the dominant influence of grain boundaries. Thesensor response and recovery was fast (several seconds) and a relatively low hysteresis value of 2.8% wasobtained.
PB  - Elsevier
T2  - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
T1  - Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing
SP  - 114547
VL  - 257
DO  - 10.1016/j.mseb.2020.114547
UR  - https://hdl.handle.net/21.15107/rcub_dais_8950
ER  - 
@article{
author = "Nikolić, Maria Vesna and Krstić, Jugoslav and Labus, Nebojša and Luković, Miloljub and Dojčinović, Milena and Radovanović, Milan and Tadić, Nenad B.",
year = "2020",
abstract = "Iron manganite (FeMnO3) powder with a cubic (bixbyite,−Ia3) crystal structure was obtained by a solid statereaction. Thick film paste (powder+organic vehicles) was screen printed on alumina substrate with test interdigitatedPdAg electrodes. Significant porosity (60.6%) composed of macropores (larger than 100 nm) wasdetermined by Hg porosimetry, changing only slightly from the first extrusion run indicating a stable poresystem. Hg porosimetry evaluation of thick film samples enabled estimation of true textural parameters of thethick film compared to powder. Impedance response of the thick film sensor was monitored in a humiditychamber in the relative humidity (RH) range 30–90%, at room temperature (25 °C) and frequency range from42 Hz to 1 MHz. At 100 Hz the impedance reduced from 10.41 MΩ for RH 30% to 0.68 MΩ for RH 90%. Analysisof complex impedance using an equivalent circuit showed the dominant influence of grain boundaries. Thesensor response and recovery was fast (several seconds) and a relatively low hysteresis value of 2.8% wasobtained.",
publisher = "Elsevier",
journal = "Materials Science and Engineering B: Solid-State Materials for Advanced Technology",
title = "Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing",
pages = "114547",
volume = "257",
doi = "10.1016/j.mseb.2020.114547",
url = "https://hdl.handle.net/21.15107/rcub_dais_8950"
}
Nikolić, M. V., Krstić, J., Labus, N., Luković, M., Dojčinović, M., Radovanović, M.,& Tadić, N. B.. (2020). Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing. in Materials Science and Engineering B: Solid-State Materials for Advanced Technology
Elsevier., 257, 114547.
https://doi.org/10.1016/j.mseb.2020.114547
https://hdl.handle.net/21.15107/rcub_dais_8950
Nikolić MV, Krstić J, Labus N, Luković M, Dojčinović M, Radovanović M, Tadić NB. Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing. in Materials Science and Engineering B: Solid-State Materials for Advanced Technology. 2020;257:114547.
doi:10.1016/j.mseb.2020.114547
https://hdl.handle.net/21.15107/rcub_dais_8950 .
Nikolić, Maria Vesna, Krstić, Jugoslav, Labus, Nebojša, Luković, Miloljub, Dojčinović, Milena, Radovanović, Milan, Tadić, Nenad B., "Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing" in Materials Science and Engineering B: Solid-State Materials for Advanced Technology, 257 (2020):114547,
https://doi.org/10.1016/j.mseb.2020.114547 .,
https://hdl.handle.net/21.15107/rcub_dais_8950 .
8
3
7

Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing

Nikolić, Maria Vesna; Krstić, Jugoslav; Labus, Nebojša; Luković, Miloljub; Dojčinović, Milena; Radovanović, Milan; Tadić, Nenad B.

(Elsevier, 2020)

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Krstić, Jugoslav
AU  - Labus, Nebojša
AU  - Luković, Miloljub
AU  - Dojčinović, Milena
AU  - Radovanović, Milan
AU  - Tadić, Nenad B.
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/10036
AB  - Iron manganite (FeMnO3) powder with a cubic (bixbyite,−Ia3) crystal structure was obtained by a solid statereaction. Thick film paste (powder+organic vehicles) was screen printed on alumina substrate with test interdigitatedPdAg electrodes. Significant porosity (60.6%) composed of macropores (larger than 100 nm) wasdetermined by Hg porosimetry, changing only slightly from the first extrusion run indicating a stable poresystem. Hg porosimetry evaluation of thick film samples enabled estimation of true textural parameters of thethick film compared to powder. Impedance response of the thick film sensor was monitored in a humiditychamber in the relative humidity (RH) range 30–90%, at room temperature (25 °C) and frequency range from42 Hz to 1 MHz. At 100 Hz the impedance reduced from 10.41 MΩ for RH 30% to 0.68 MΩ for RH 90%. Analysisof complex impedance using an equivalent circuit showed the dominant influence of grain boundaries. Thesensor response and recovery was fast (several seconds) and a relatively low hysteresis value of 2.8% wasobtained.
PB  - Elsevier
T2  - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
T1  - Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing
SP  - 114547
VL  - 257
DO  - 10.1016/j.mseb.2020.114547
UR  - https://hdl.handle.net/21.15107/rcub_dais_10036
ER  - 
@article{
author = "Nikolić, Maria Vesna and Krstić, Jugoslav and Labus, Nebojša and Luković, Miloljub and Dojčinović, Milena and Radovanović, Milan and Tadić, Nenad B.",
year = "2020",
abstract = "Iron manganite (FeMnO3) powder with a cubic (bixbyite,−Ia3) crystal structure was obtained by a solid statereaction. Thick film paste (powder+organic vehicles) was screen printed on alumina substrate with test interdigitatedPdAg electrodes. Significant porosity (60.6%) composed of macropores (larger than 100 nm) wasdetermined by Hg porosimetry, changing only slightly from the first extrusion run indicating a stable poresystem. Hg porosimetry evaluation of thick film samples enabled estimation of true textural parameters of thethick film compared to powder. Impedance response of the thick film sensor was monitored in a humiditychamber in the relative humidity (RH) range 30–90%, at room temperature (25 °C) and frequency range from42 Hz to 1 MHz. At 100 Hz the impedance reduced from 10.41 MΩ for RH 30% to 0.68 MΩ for RH 90%. Analysisof complex impedance using an equivalent circuit showed the dominant influence of grain boundaries. Thesensor response and recovery was fast (several seconds) and a relatively low hysteresis value of 2.8% wasobtained.",
publisher = "Elsevier",
journal = "Materials Science and Engineering B: Solid-State Materials for Advanced Technology",
title = "Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing",
pages = "114547",
volume = "257",
doi = "10.1016/j.mseb.2020.114547",
url = "https://hdl.handle.net/21.15107/rcub_dais_10036"
}
Nikolić, M. V., Krstić, J., Labus, N., Luković, M., Dojčinović, M., Radovanović, M.,& Tadić, N. B.. (2020). Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing. in Materials Science and Engineering B: Solid-State Materials for Advanced Technology
Elsevier., 257, 114547.
https://doi.org/10.1016/j.mseb.2020.114547
https://hdl.handle.net/21.15107/rcub_dais_10036
Nikolić MV, Krstić J, Labus N, Luković M, Dojčinović M, Radovanović M, Tadić NB. Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing. in Materials Science and Engineering B: Solid-State Materials for Advanced Technology. 2020;257:114547.
doi:10.1016/j.mseb.2020.114547
https://hdl.handle.net/21.15107/rcub_dais_10036 .
Nikolić, Maria Vesna, Krstić, Jugoslav, Labus, Nebojša, Luković, Miloljub, Dojčinović, Milena, Radovanović, Milan, Tadić, Nenad B., "Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing" in Materials Science and Engineering B: Solid-State Materials for Advanced Technology, 257 (2020):114547,
https://doi.org/10.1016/j.mseb.2020.114547 .,
https://hdl.handle.net/21.15107/rcub_dais_10036 .
8
3
7

The importance of ground-based and satellite observations for monitoring and estimation of UV radiation in Novi Sad (Serbia)

Malinović-Milićević, Slavica; Mijatović, Zoran; Arsenić, Ilija; Podrašćanin, Zorica; Firanj Sremac, Ana; Radovanović, Milan; Drešković, Nusret

(Belgrade, Serbia : Geographical Institute "Jovan Cvijić" SASA, 2020)

TY  - JOUR
AU  - Malinović-Milićević, Slavica
AU  - Mijatović, Zoran
AU  - Arsenić, Ilija
AU  - Podrašćanin, Zorica
AU  - Firanj Sremac, Ana
AU  - Radovanović, Milan
AU  - Drešković, Nusret
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/13860
AB  - Solar ultraviolet (UV) radiation is a significant health hazard in the warm part of the year. In order to assess the level of hazard and the effects of UV radiation on the living world, long-term measured or estimated data are needed. In Novi Sad, the measurement of UV radiation has been performed since 2003, while ozone
measurements have been made since 2007. However, those data sets are too short for assessing long-term biological effects. Therefore, several techniques for reconstruction of UV radiation doses have been developed. Reconstruction techniques are based on using available ground-based measurements of the meteorological data and satellite measurements of the total ozone column. It is shown that techniques that use ozone data show better performance than those that use only ground-based meteorological measurements. However, the
difference between the performances of the methods is smaller when it comes to the monthly values, indicating that the techniques which use only ground-based meteorological measurements are roughly as good as the ozone-based techniques for assessing long-term changes in the surface UV radiation. The statistically significant increasing long term-trend of annual mean erythemal UV doses (ERY) and the decreasing trend in the total ozone column in Novi Sad since 1981 have been noticed. An increase in ERY has been noticed in all the seasons except in autumn and it is the highest in winter. The analysis showed that the increase in the ERY in the period 1981–1996 was mainly caused by the total ozone column, while the increase after 1996 is largely caused by cloudiness
PB  - Belgrade, Serbia : Geographical Institute "Jovan Cvijić" SASA
T2  - Journal of the Geographical Institute Jovan Cvijic SASA
T1  - The importance of ground-based and satellite observations for monitoring and estimation of UV radiation in Novi Sad (Serbia)
SP  - 57
EP  - 70
VL  - 70
IS  - 1
DO  - 10.2298/IJGI2001057M
UR  - https://hdl.handle.net/21.15107/rcub_dais_13860
ER  - 
@article{
author = "Malinović-Milićević, Slavica and Mijatović, Zoran and Arsenić, Ilija and Podrašćanin, Zorica and Firanj Sremac, Ana and Radovanović, Milan and Drešković, Nusret",
year = "2020",
abstract = "Solar ultraviolet (UV) radiation is a significant health hazard in the warm part of the year. In order to assess the level of hazard and the effects of UV radiation on the living world, long-term measured or estimated data are needed. In Novi Sad, the measurement of UV radiation has been performed since 2003, while ozone
measurements have been made since 2007. However, those data sets are too short for assessing long-term biological effects. Therefore, several techniques for reconstruction of UV radiation doses have been developed. Reconstruction techniques are based on using available ground-based measurements of the meteorological data and satellite measurements of the total ozone column. It is shown that techniques that use ozone data show better performance than those that use only ground-based meteorological measurements. However, the
difference between the performances of the methods is smaller when it comes to the monthly values, indicating that the techniques which use only ground-based meteorological measurements are roughly as good as the ozone-based techniques for assessing long-term changes in the surface UV radiation. The statistically significant increasing long term-trend of annual mean erythemal UV doses (ERY) and the decreasing trend in the total ozone column in Novi Sad since 1981 have been noticed. An increase in ERY has been noticed in all the seasons except in autumn and it is the highest in winter. The analysis showed that the increase in the ERY in the period 1981–1996 was mainly caused by the total ozone column, while the increase after 1996 is largely caused by cloudiness",
publisher = "Belgrade, Serbia : Geographical Institute "Jovan Cvijić" SASA",
journal = "Journal of the Geographical Institute Jovan Cvijic SASA",
title = "The importance of ground-based and satellite observations for monitoring and estimation of UV radiation in Novi Sad (Serbia)",
pages = "57-70",
volume = "70",
number = "1",
doi = "10.2298/IJGI2001057M",
url = "https://hdl.handle.net/21.15107/rcub_dais_13860"
}
Malinović-Milićević, S., Mijatović, Z., Arsenić, I., Podrašćanin, Z., Firanj Sremac, A., Radovanović, M.,& Drešković, N.. (2020). The importance of ground-based and satellite observations for monitoring and estimation of UV radiation in Novi Sad (Serbia). in Journal of the Geographical Institute Jovan Cvijic SASA
Belgrade, Serbia : Geographical Institute "Jovan Cvijić" SASA., 70(1), 57-70.
https://doi.org/10.2298/IJGI2001057M
https://hdl.handle.net/21.15107/rcub_dais_13860
Malinović-Milićević S, Mijatović Z, Arsenić I, Podrašćanin Z, Firanj Sremac A, Radovanović M, Drešković N. The importance of ground-based and satellite observations for monitoring and estimation of UV radiation in Novi Sad (Serbia). in Journal of the Geographical Institute Jovan Cvijic SASA. 2020;70(1):57-70.
doi:10.2298/IJGI2001057M
https://hdl.handle.net/21.15107/rcub_dais_13860 .
Malinović-Milićević, Slavica, Mijatović, Zoran, Arsenić, Ilija, Podrašćanin, Zorica, Firanj Sremac, Ana, Radovanović, Milan, Drešković, Nusret, "The importance of ground-based and satellite observations for monitoring and estimation of UV radiation in Novi Sad (Serbia)" in Journal of the Geographical Institute Jovan Cvijic SASA, 70, no. 1 (2020):57-70,
https://doi.org/10.2298/IJGI2001057M .,
https://hdl.handle.net/21.15107/rcub_dais_13860 .
4
4

Can Proper Funding Enhance Sustainable Tourism in Rural Settings? Evidence from a Developing Country

Radović, Gordana; Petrović, Marko D.; Demirović Bajrami, Dunja; Radovanović, Milan; Vuković, Natalia

(MDPI AG, 2020)

TY  - JOUR
AU  - Radović, Gordana
AU  - Petrović, Marko D.
AU  - Demirović Bajrami, Dunja
AU  - Radovanović, Milan
AU  - Vuković, Natalia
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/14605
AB  - Rural tourism is often considered to be a factor in the development tendencies of rural space, a factor in the development of agriculture, as well as a factor in reducing rural depopulation. The primary aim of the research was to look at the problems in financing sustainable rural tourism in the case study of Serbia. The secondary one was to analyze the factors that may influence the self-financing capacity of rural tourism service providers. The findings confirmed the main hypothesis that financial resources are a significant limitation of the development of sustainable rural tourism. It was found that there is a high correlation between the amount of income generated and the structure of the workforce. The results verified that rural tourism entities were not making sufficient investments due to lack of financial resources, i.e., adequate financing modalities. It can be concluded thatin order to develop sustainable rural tourism, financial investments are needed, both at the level of service providers and at the macro level.
PB  - MDPI AG
T2  - Sustainability
T1  - Can Proper Funding Enhance Sustainable Tourism in Rural Settings? Evidence from a Developing Country
SP  - 7797
VL  - 12
IS  - 18
DO  - 10.3390/su12187797
UR  - https://hdl.handle.net/21.15107/rcub_dais_14605
ER  - 
@article{
author = "Radović, Gordana and Petrović, Marko D. and Demirović Bajrami, Dunja and Radovanović, Milan and Vuković, Natalia",
year = "2020",
abstract = "Rural tourism is often considered to be a factor in the development tendencies of rural space, a factor in the development of agriculture, as well as a factor in reducing rural depopulation. The primary aim of the research was to look at the problems in financing sustainable rural tourism in the case study of Serbia. The secondary one was to analyze the factors that may influence the self-financing capacity of rural tourism service providers. The findings confirmed the main hypothesis that financial resources are a significant limitation of the development of sustainable rural tourism. It was found that there is a high correlation between the amount of income generated and the structure of the workforce. The results verified that rural tourism entities were not making sufficient investments due to lack of financial resources, i.e., adequate financing modalities. It can be concluded thatin order to develop sustainable rural tourism, financial investments are needed, both at the level of service providers and at the macro level.",
publisher = "MDPI AG",
journal = "Sustainability",
title = "Can Proper Funding Enhance Sustainable Tourism in Rural Settings? Evidence from a Developing Country",
pages = "7797",
volume = "12",
number = "18",
doi = "10.3390/su12187797",
url = "https://hdl.handle.net/21.15107/rcub_dais_14605"
}
Radović, G., Petrović, M. D., Demirović Bajrami, D., Radovanović, M.,& Vuković, N.. (2020). Can Proper Funding Enhance Sustainable Tourism in Rural Settings? Evidence from a Developing Country. in Sustainability
MDPI AG., 12(18), 7797.
https://doi.org/10.3390/su12187797
https://hdl.handle.net/21.15107/rcub_dais_14605
Radović G, Petrović MD, Demirović Bajrami D, Radovanović M, Vuković N. Can Proper Funding Enhance Sustainable Tourism in Rural Settings? Evidence from a Developing Country. in Sustainability. 2020;12(18):7797.
doi:10.3390/su12187797
https://hdl.handle.net/21.15107/rcub_dais_14605 .
Radović, Gordana, Petrović, Marko D., Demirović Bajrami, Dunja, Radovanović, Milan, Vuković, Natalia, "Can Proper Funding Enhance Sustainable Tourism in Rural Settings? Evidence from a Developing Country" in Sustainability, 12, no. 18 (2020):7797,
https://doi.org/10.3390/su12187797 .,
https://hdl.handle.net/21.15107/rcub_dais_14605 .
16
20

Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite

Nikolić, Maria Vesna; Vasiljević, Zorka Ž.; Dojčinović, Milena P.; Vujančević, Jelena; Radovanović, Milan

(IEEE, 2020)

TY  - CONF
AU  - Nikolić, Maria Vesna
AU  - Vasiljević, Zorka Ž.
AU  - Dojčinović, Milena P.
AU  - Vujančević, Jelena
AU  - Radovanović, Milan
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/8965
AB  - This work deals with our continued research of oxide materials for potential application in gas/humidity sensing. We have made thick film samples using iron manganite powder synthesized by a sol-gel combustion method with a net-like structure, by screen printing on alumina substrate with PdAg interdigitated electrodes. The thick film samples were fired at two temperatures 600 and 800°C. The powder morphology was retained and only the organic compounds in the paste were burnt-out at 600°C, while at 800°C the thick film surface morphology was different where grain growth and individual particles can be observed. We measured complex impedance in a temperature and humidity chamber at room temperature (25°C) in the relative humidity range 30 – 90 % and frequency 100 Hz - 1 MHz. The thick film surface morphology has a significant influence on the effect of humidity on complex impedance. The complex impedance of thick films fired at 600°C was high and did not decrease noticeably with increase in relative humidity (RH), except for RH 80 and 90%, while thick film samples fired at 800°C had an overall lower impedance that reduced more noticeably with increase in RH 40–70% and even more for RH 80 and 90%.
PB  - IEEE
C3  - 2020 43rd International Spring Seminar on Electronics Technology (ISSE)
T1  - Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite
SP  - 1
EP  - 5
DO  - 10.1109/ISSE49702.2020.9120967
UR  - https://hdl.handle.net/21.15107/rcub_dais_8965
ER  - 
@conference{
author = "Nikolić, Maria Vesna and Vasiljević, Zorka Ž. and Dojčinović, Milena P. and Vujančević, Jelena and Radovanović, Milan",
year = "2020",
abstract = "This work deals with our continued research of oxide materials for potential application in gas/humidity sensing. We have made thick film samples using iron manganite powder synthesized by a sol-gel combustion method with a net-like structure, by screen printing on alumina substrate with PdAg interdigitated electrodes. The thick film samples were fired at two temperatures 600 and 800°C. The powder morphology was retained and only the organic compounds in the paste were burnt-out at 600°C, while at 800°C the thick film surface morphology was different where grain growth and individual particles can be observed. We measured complex impedance in a temperature and humidity chamber at room temperature (25°C) in the relative humidity range 30 – 90 % and frequency 100 Hz - 1 MHz. The thick film surface morphology has a significant influence on the effect of humidity on complex impedance. The complex impedance of thick films fired at 600°C was high and did not decrease noticeably with increase in relative humidity (RH), except for RH 80 and 90%, while thick film samples fired at 800°C had an overall lower impedance that reduced more noticeably with increase in RH 40–70% and even more for RH 80 and 90%.",
publisher = "IEEE",
journal = "2020 43rd International Spring Seminar on Electronics Technology (ISSE)",
title = "Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite",
pages = "1-5",
doi = "10.1109/ISSE49702.2020.9120967",
url = "https://hdl.handle.net/21.15107/rcub_dais_8965"
}
Nikolić, M. V., Vasiljević, Z. Ž., Dojčinović, M. P., Vujančević, J.,& Radovanović, M.. (2020). Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite. in 2020 43rd International Spring Seminar on Electronics Technology (ISSE)
IEEE., 1-5.
https://doi.org/10.1109/ISSE49702.2020.9120967
https://hdl.handle.net/21.15107/rcub_dais_8965
Nikolić MV, Vasiljević ZŽ, Dojčinović MP, Vujančević J, Radovanović M. Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite. in 2020 43rd International Spring Seminar on Electronics Technology (ISSE). 2020;:1-5.
doi:10.1109/ISSE49702.2020.9120967
https://hdl.handle.net/21.15107/rcub_dais_8965 .
Nikolić, Maria Vesna, Vasiljević, Zorka Ž., Dojčinović, Milena P., Vujančević, Jelena, Radovanović, Milan, "Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite" in 2020 43rd International Spring Seminar on Electronics Technology (ISSE) (2020):1-5,
https://doi.org/10.1109/ISSE49702.2020.9120967 .,
https://hdl.handle.net/21.15107/rcub_dais_8965 .

Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite

Nikolić, Maria Vesna; Vasiljević, Zorka Ž.; Dojčinović, Milena; Vujančević, Jelena; Radovanović, Milan

(IEEE, 2020)

TY  - CONF
AU  - Nikolić, Maria Vesna
AU  - Vasiljević, Zorka Ž.
AU  - Dojčinović, Milena
AU  - Vujančević, Jelena
AU  - Radovanović, Milan
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/10026
AB  - This work deals with our continued research of oxide materials for potential application in gas/humidity sensing. We have made thick film samples using iron manganite powder synthesized by a sol-gel combustion method with a net-like structure, by screen printing on alumina substrate with PdAg interdigitated electrodes. The thick film samples were fired at two temperatures 600 and 800°C. The powder morphology was retained and only the organic compounds in the paste were burnt-out at 600°C, while at 800°C the thick film surface morphology was different where grain growth and individual particles can be observed. We measured complex impedance in a temperature and humidity chamber at room temperature (25°C) in the relative humidity range 30 – 90 % and frequency 100 Hz - 1 MHz. The thick film surface morphology has a significant influence on the effect of humidity on complex impedance. The complex impedance of thick films fired at 600°C was high and did not decrease noticeably with increase in relative humidity (RH), except for RH 80 and 90%, while thick film samples fired at 800°C had an overall lower impedance that reduced more noticeably with increase in RH 40–70% and even more for RH 80 and 90%.
PB  - IEEE
C3  - 2020 43rd International Spring Seminar on Electronics Technology (ISSE)
T1  - Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite
SP  - 1
EP  - 5
DO  - 10.1109/ISSE49702.2020.9120967
UR  - https://hdl.handle.net/21.15107/rcub_dais_10026
ER  - 
@conference{
author = "Nikolić, Maria Vesna and Vasiljević, Zorka Ž. and Dojčinović, Milena and Vujančević, Jelena and Radovanović, Milan",
year = "2020",
abstract = "This work deals with our continued research of oxide materials for potential application in gas/humidity sensing. We have made thick film samples using iron manganite powder synthesized by a sol-gel combustion method with a net-like structure, by screen printing on alumina substrate with PdAg interdigitated electrodes. The thick film samples were fired at two temperatures 600 and 800°C. The powder morphology was retained and only the organic compounds in the paste were burnt-out at 600°C, while at 800°C the thick film surface morphology was different where grain growth and individual particles can be observed. We measured complex impedance in a temperature and humidity chamber at room temperature (25°C) in the relative humidity range 30 – 90 % and frequency 100 Hz - 1 MHz. The thick film surface morphology has a significant influence on the effect of humidity on complex impedance. The complex impedance of thick films fired at 600°C was high and did not decrease noticeably with increase in relative humidity (RH), except for RH 80 and 90%, while thick film samples fired at 800°C had an overall lower impedance that reduced more noticeably with increase in RH 40–70% and even more for RH 80 and 90%.",
publisher = "IEEE",
journal = "2020 43rd International Spring Seminar on Electronics Technology (ISSE)",
title = "Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite",
pages = "1-5",
doi = "10.1109/ISSE49702.2020.9120967",
url = "https://hdl.handle.net/21.15107/rcub_dais_10026"
}
Nikolić, M. V., Vasiljević, Z. Ž., Dojčinović, M., Vujančević, J.,& Radovanović, M.. (2020). Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite. in 2020 43rd International Spring Seminar on Electronics Technology (ISSE)
IEEE., 1-5.
https://doi.org/10.1109/ISSE49702.2020.9120967
https://hdl.handle.net/21.15107/rcub_dais_10026
Nikolić MV, Vasiljević ZŽ, Dojčinović M, Vujančević J, Radovanović M. Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite. in 2020 43rd International Spring Seminar on Electronics Technology (ISSE). 2020;:1-5.
doi:10.1109/ISSE49702.2020.9120967
https://hdl.handle.net/21.15107/rcub_dais_10026 .
Nikolić, Maria Vesna, Vasiljević, Zorka Ž., Dojčinović, Milena, Vujančević, Jelena, Radovanović, Milan, "Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite" in 2020 43rd International Spring Seminar on Electronics Technology (ISSE) (2020):1-5,
https://doi.org/10.1109/ISSE49702.2020.9120967 .,
https://hdl.handle.net/21.15107/rcub_dais_10026 .

Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films

Nikolić, Maria Vesna; Vasiljević, Zorka Ž.; Luković, Miloljub D.; Pavlović, Vera P.; Vujančević, Jelena; Radovanović, Milan; Krstić, Jugoslav; Vlahović, Branislav; Pavlović, Vladimir B.

(Elsevier, 2018)

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Vasiljević, Zorka Ž.
AU  - Luković, Miloljub D.
AU  - Pavlović, Vera P.
AU  - Vujančević, Jelena
AU  - Radovanović, Milan
AU  - Krstić, Jugoslav
AU  - Vlahović, Branislav
AU  - Pavlović, Vladimir B.
PY  - 2018
UR  - http://www.sciencedirect.com/science/article/pii/S0925400518316836
UR  - https://dais.sanu.ac.rs/123456789/4605
AB  - Pseudobrookite based nanopowder was obtained by solid state synthesis of starting hematite and anatase nanopowders in the weight ratio 55:45. Structural and morphological properties were analyzed using X-ray diffraction (XRD), BET, X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, UV/Vis diffuse reflectance spectroscopy, Field emission scanning electron microscopy (FESEM) and Transmission electron microscopy (TEM) confirming the formation of nanocrystalline pseudobrookite. The obtained powder was mixed with a binder (ethyl cellulose), dispersant (α-terpinol) and adhesion agents (acetic acid and distilled water) to obtain a thick film paste. It was screen printed on alumina substrate with interdigitated PdAg electrodes and fired at 600 °C for 30 min. Formation of a porous nanocrystalline thick film structure was shown using Scanning electron microscopy (SEM), while Hall measurements enabled determination of carrier mobility. Change of impedance response in the frequency range 42 Hz–1 MHz with humidity was analyzed at room temperature (25 °C) and 50 °C in the relative humidity range 30–90% and 40–90%, respectively. At 42 Hz, and room temperature the impedance reduced ∼28 times, while at 50 °C it reduced ∼147 times in the relative humidity range 40–90%. The sensor showed rapid response (16 s) and relatively low hysteresis (8.39% at 25 °C and 2.64% at 50 °C) showing that this is a promising material for application in humidity sensing.
PB  - Elsevier
T2  - Sensors and Actuators B: Chemical
T1  - Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films
SP  - 654
EP  - 664
VL  - 277
DO  - 10.1016/j.snb.2018.09.063
UR  - https://hdl.handle.net/21.15107/rcub_dais_4605
ER  - 
@article{
author = "Nikolić, Maria Vesna and Vasiljević, Zorka Ž. and Luković, Miloljub D. and Pavlović, Vera P. and Vujančević, Jelena and Radovanović, Milan and Krstić, Jugoslav and Vlahović, Branislav and Pavlović, Vladimir B.",
year = "2018",
abstract = "Pseudobrookite based nanopowder was obtained by solid state synthesis of starting hematite and anatase nanopowders in the weight ratio 55:45. Structural and morphological properties were analyzed using X-ray diffraction (XRD), BET, X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, UV/Vis diffuse reflectance spectroscopy, Field emission scanning electron microscopy (FESEM) and Transmission electron microscopy (TEM) confirming the formation of nanocrystalline pseudobrookite. The obtained powder was mixed with a binder (ethyl cellulose), dispersant (α-terpinol) and adhesion agents (acetic acid and distilled water) to obtain a thick film paste. It was screen printed on alumina substrate with interdigitated PdAg electrodes and fired at 600 °C for 30 min. Formation of a porous nanocrystalline thick film structure was shown using Scanning electron microscopy (SEM), while Hall measurements enabled determination of carrier mobility. Change of impedance response in the frequency range 42 Hz–1 MHz with humidity was analyzed at room temperature (25 °C) and 50 °C in the relative humidity range 30–90% and 40–90%, respectively. At 42 Hz, and room temperature the impedance reduced ∼28 times, while at 50 °C it reduced ∼147 times in the relative humidity range 40–90%. The sensor showed rapid response (16 s) and relatively low hysteresis (8.39% at 25 °C and 2.64% at 50 °C) showing that this is a promising material for application in humidity sensing.",
publisher = "Elsevier",
journal = "Sensors and Actuators B: Chemical",
title = "Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films",
pages = "654-664",
volume = "277",
doi = "10.1016/j.snb.2018.09.063",
url = "https://hdl.handle.net/21.15107/rcub_dais_4605"
}
Nikolić, M. V., Vasiljević, Z. Ž., Luković, M. D., Pavlović, V. P., Vujančević, J., Radovanović, M., Krstić, J., Vlahović, B.,& Pavlović, V. B.. (2018). Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films. in Sensors and Actuators B: Chemical
Elsevier., 277, 654-664.
https://doi.org/10.1016/j.snb.2018.09.063
https://hdl.handle.net/21.15107/rcub_dais_4605
Nikolić MV, Vasiljević ZŽ, Luković MD, Pavlović VP, Vujančević J, Radovanović M, Krstić J, Vlahović B, Pavlović VB. Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films. in Sensors and Actuators B: Chemical. 2018;277:654-664.
doi:10.1016/j.snb.2018.09.063
https://hdl.handle.net/21.15107/rcub_dais_4605 .
Nikolić, Maria Vesna, Vasiljević, Zorka Ž., Luković, Miloljub D., Pavlović, Vera P., Vujančević, Jelena, Radovanović, Milan, Krstić, Jugoslav, Vlahović, Branislav, Pavlović, Vladimir B., "Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films" in Sensors and Actuators B: Chemical, 277 (2018):654-664,
https://doi.org/10.1016/j.snb.2018.09.063 .,
https://hdl.handle.net/21.15107/rcub_dais_4605 .
40
22
38

Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films

Nikolić, Maria Vesna; Vasiljević, Zorka Ž.; Luković, Miloljub D.; Pavlović, Vera P.; Vujančević, Jelena; Radovanović, Milan; Krstić, Jugoslav; Vlahović, Branislav; Pavlović, Vladimir B.

(Elsevier, 2018)

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Vasiljević, Zorka Ž.
AU  - Luković, Miloljub D.
AU  - Pavlović, Vera P.
AU  - Vujančević, Jelena
AU  - Radovanović, Milan
AU  - Krstić, Jugoslav
AU  - Vlahović, Branislav
AU  - Pavlović, Vladimir B.
PY  - 2018
UR  - http://www.sciencedirect.com/science/article/pii/S0925400518316836
UR  - https://dais.sanu.ac.rs/123456789/4527
AB  - Pseudobrookite based nanopowder was obtained by solid state synthesis of starting hematite and anatase nanopowders in the weight ratio 55:45. Structural and morphological properties were analyzed using X-ray diffraction (XRD), BET, X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, UV/Vis diffuse reflectance spectroscopy, Field emission scanning electron microscopy (FESEM) and Transmission electron microscopy (TEM) confirming the formation of nanocrystalline pseudobrookite. The obtained powder was mixed with a binder (ethyl cellulose), dispersant (α-terpinol) and adhesion agents (acetic acid and distilled water) to obtain a thick film paste. It was screen printed on alumina substrate with interdigitated PdAg electrodes and fired at 600 °C for 30 min. Formation of a porous nanocrystalline thick film structure was shown using Scanning electron microscopy (SEM), while Hall measurements enabled determination of carrier mobility. Change of impedance response in the frequency range 42 Hz–1 MHz with humidity was analyzed at room temperature (25 °C) and 50 °C in the relative humidity range 30–90% and 40–90%, respectively. At 42 Hz, and room temperature the impedance reduced ∼28 times, while at 50 °C it reduced ∼147 times in the relative humidity range 40–90%. The sensor showed rapid response (16 s) and relatively low hysteresis (8.39% at 25 °C and 2.64% at 50 °C) showing that this is a promising material for application in humidity sensing.
PB  - Elsevier
T2  - Sensors and Actuators B: Chemical
T1  - Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films
SP  - 654
EP  - 664
VL  - 277
DO  - 10.1016/j.snb.2018.09.063
UR  - https://hdl.handle.net/21.15107/rcub_dais_4527
ER  - 
@article{
author = "Nikolić, Maria Vesna and Vasiljević, Zorka Ž. and Luković, Miloljub D. and Pavlović, Vera P. and Vujančević, Jelena and Radovanović, Milan and Krstić, Jugoslav and Vlahović, Branislav and Pavlović, Vladimir B.",
year = "2018",
abstract = "Pseudobrookite based nanopowder was obtained by solid state synthesis of starting hematite and anatase nanopowders in the weight ratio 55:45. Structural and morphological properties were analyzed using X-ray diffraction (XRD), BET, X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, UV/Vis diffuse reflectance spectroscopy, Field emission scanning electron microscopy (FESEM) and Transmission electron microscopy (TEM) confirming the formation of nanocrystalline pseudobrookite. The obtained powder was mixed with a binder (ethyl cellulose), dispersant (α-terpinol) and adhesion agents (acetic acid and distilled water) to obtain a thick film paste. It was screen printed on alumina substrate with interdigitated PdAg electrodes and fired at 600 °C for 30 min. Formation of a porous nanocrystalline thick film structure was shown using Scanning electron microscopy (SEM), while Hall measurements enabled determination of carrier mobility. Change of impedance response in the frequency range 42 Hz–1 MHz with humidity was analyzed at room temperature (25 °C) and 50 °C in the relative humidity range 30–90% and 40–90%, respectively. At 42 Hz, and room temperature the impedance reduced ∼28 times, while at 50 °C it reduced ∼147 times in the relative humidity range 40–90%. The sensor showed rapid response (16 s) and relatively low hysteresis (8.39% at 25 °C and 2.64% at 50 °C) showing that this is a promising material for application in humidity sensing.",
publisher = "Elsevier",
journal = "Sensors and Actuators B: Chemical",
title = "Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films",
pages = "654-664",
volume = "277",
doi = "10.1016/j.snb.2018.09.063",
url = "https://hdl.handle.net/21.15107/rcub_dais_4527"
}
Nikolić, M. V., Vasiljević, Z. Ž., Luković, M. D., Pavlović, V. P., Vujančević, J., Radovanović, M., Krstić, J., Vlahović, B.,& Pavlović, V. B.. (2018). Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films. in Sensors and Actuators B: Chemical
Elsevier., 277, 654-664.
https://doi.org/10.1016/j.snb.2018.09.063
https://hdl.handle.net/21.15107/rcub_dais_4527
Nikolić MV, Vasiljević ZŽ, Luković MD, Pavlović VP, Vujančević J, Radovanović M, Krstić J, Vlahović B, Pavlović VB. Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films. in Sensors and Actuators B: Chemical. 2018;277:654-664.
doi:10.1016/j.snb.2018.09.063
https://hdl.handle.net/21.15107/rcub_dais_4527 .
Nikolić, Maria Vesna, Vasiljević, Zorka Ž., Luković, Miloljub D., Pavlović, Vera P., Vujančević, Jelena, Radovanović, Milan, Krstić, Jugoslav, Vlahović, Branislav, Pavlović, Vladimir B., "Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films" in Sensors and Actuators B: Chemical, 277 (2018):654-664,
https://doi.org/10.1016/j.snb.2018.09.063 .,
https://hdl.handle.net/21.15107/rcub_dais_4527 .
40
22
38

Preparation and characterization of Cu and Zn modified nickel manganite NTC powders and thick film thermistors

Aleksić, Obrad S.; Nikolić, Maria Vesna; Luković, Miloljub D.; Nikolić, N.; Radojčić, B. M.; Radovanović, Milan; Đurić, Zorka Ž.; Mitrić, Miodrag; Nikolić, Pantelija M.

(Elsevier, 2013)

TY  - JOUR
AU  - Aleksić, Obrad S.
AU  - Nikolić, Maria Vesna
AU  - Luković, Miloljub D.
AU  - Nikolić, N.
AU  - Radojčić, B. M.
AU  - Radovanović, Milan
AU  - Đurić, Zorka Ž.
AU  - Mitrić, Miodrag
AU  - Nikolić, Pantelija M.
PY  - 2013
UR  - https://dais.sanu.ac.rs/123456789/339
AB  - A simple ball milling/thermal treatment procedure was applied to obtain fine thermistor powders. Three different powder compositions were analyzed–Cu0.2Ni0.5Zn1.0Mn1.3O4, Cu0.25Ni0.5Zn1.0Mn1.25O4 and Cu0.4Ni0.5Mn2.1O4. XRD analysis showed that all three powder compositions had a cubic spinel structure. Correlation between the sintering temperature, structure and resulting electrical properties was analyzed on bulk samples. Thick film pastes were composed and segmented thick film thermistors were screen printed on alumina, dried and fired. SEM analysis revealed a typical dendrite structure with small grains and a developed surface area. Thick film sheet resistance was measured on a test matrix and the resistance decreased with increasing Cu content. The temperature dependence of sample resistance was measured in a climatic chamber enabling calculation of the material constant and activation energy. Aging of the obtained segmented thermistors was analyzed and the resistivity drift was 0.23% for the Cu0.2Ni0.5Zn1.0Mn1.3O4 NTC thick film thermistor confirming greater stability of thermistors containing Zn and Cu that in combination with the determined good thermistor characteristics make them good candidates for temperature and heat loss sensor applications.
PB  - Elsevier
T2  - Materials Science and Engineering: B
T1  - Preparation and characterization of Cu and Zn modified nickel manganite NTC powders and thick film thermistors
SP  - 202
EP  - 210
VL  - 178
IS  - 3
DO  - 10.1016/j.mseb.2012.11.003
UR  - https://hdl.handle.net/21.15107/rcub_dais_339
ER  - 
@article{
author = "Aleksić, Obrad S. and Nikolić, Maria Vesna and Luković, Miloljub D. and Nikolić, N. and Radojčić, B. M. and Radovanović, Milan and Đurić, Zorka Ž. and Mitrić, Miodrag and Nikolić, Pantelija M.",
year = "2013",
abstract = "A simple ball milling/thermal treatment procedure was applied to obtain fine thermistor powders. Three different powder compositions were analyzed–Cu0.2Ni0.5Zn1.0Mn1.3O4, Cu0.25Ni0.5Zn1.0Mn1.25O4 and Cu0.4Ni0.5Mn2.1O4. XRD analysis showed that all three powder compositions had a cubic spinel structure. Correlation between the sintering temperature, structure and resulting electrical properties was analyzed on bulk samples. Thick film pastes were composed and segmented thick film thermistors were screen printed on alumina, dried and fired. SEM analysis revealed a typical dendrite structure with small grains and a developed surface area. Thick film sheet resistance was measured on a test matrix and the resistance decreased with increasing Cu content. The temperature dependence of sample resistance was measured in a climatic chamber enabling calculation of the material constant and activation energy. Aging of the obtained segmented thermistors was analyzed and the resistivity drift was 0.23% for the Cu0.2Ni0.5Zn1.0Mn1.3O4 NTC thick film thermistor confirming greater stability of thermistors containing Zn and Cu that in combination with the determined good thermistor characteristics make them good candidates for temperature and heat loss sensor applications.",
publisher = "Elsevier",
journal = "Materials Science and Engineering: B",
title = "Preparation and characterization of Cu and Zn modified nickel manganite NTC powders and thick film thermistors",
pages = "202-210",
volume = "178",
number = "3",
doi = "10.1016/j.mseb.2012.11.003",
url = "https://hdl.handle.net/21.15107/rcub_dais_339"
}
Aleksić, O. S., Nikolić, M. V., Luković, M. D., Nikolić, N., Radojčić, B. M., Radovanović, M., Đurić, Z. Ž., Mitrić, M.,& Nikolić, P. M.. (2013). Preparation and characterization of Cu and Zn modified nickel manganite NTC powders and thick film thermistors. in Materials Science and Engineering: B
Elsevier., 178(3), 202-210.
https://doi.org/10.1016/j.mseb.2012.11.003
https://hdl.handle.net/21.15107/rcub_dais_339
Aleksić OS, Nikolić MV, Luković MD, Nikolić N, Radojčić BM, Radovanović M, Đurić ZŽ, Mitrić M, Nikolić PM. Preparation and characterization of Cu and Zn modified nickel manganite NTC powders and thick film thermistors. in Materials Science and Engineering: B. 2013;178(3):202-210.
doi:10.1016/j.mseb.2012.11.003
https://hdl.handle.net/21.15107/rcub_dais_339 .
Aleksić, Obrad S., Nikolić, Maria Vesna, Luković, Miloljub D., Nikolić, N., Radojčić, B. M., Radovanović, Milan, Đurić, Zorka Ž., Mitrić, Miodrag, Nikolić, Pantelija M., "Preparation and characterization of Cu and Zn modified nickel manganite NTC powders and thick film thermistors" in Materials Science and Engineering: B, 178, no. 3 (2013):202-210,
https://doi.org/10.1016/j.mseb.2012.11.003 .,
https://hdl.handle.net/21.15107/rcub_dais_339 .
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30
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