TY  - CONF
AU  - Mišković, Goran
AU  - Nikolić, Maria Vesna
AU  - Luković, Miloljub D.
AU  - Vasiljević, Zorka Ž.
AU  - Nicolics, Johann
AU  - Aleksić, Obrad S.
PY  - 2017
UR  - https://dais.sanu.ac.rs/123456789/3685
AB  - Pseudobrookite thick films were obtained by screen printing paste composed of a 1:1.5 molar ratio mixture of starting nanopowders of hematite and anatase, glass frit and organic binder. The films were deposited on alumina substrates with interdigitated electrode geometry. Sintering at 850 °C resulted in the formation of pseudobrookite. X-Ray Diffraction (XRD) analysis showed pseudobrookite with a mixed orthorhombic and monoclinic structure and a small amount of excess rutile. Gas sensing measurements with low NO gas concentrations in air were performed using an in-house gas sensor testing setup in the temperature range 100-300 °C. On the example of one particular gas concentration, results showed that pseudobrookite exhibited a distinct response to NO already at 150 °C that further improved with increased sample temperature.
PB  - IEEE
C3  - 2017 40th International Spring Seminar on Electronics Technology (ISSE)
T1  - Pseudobrookite thick films for potential application as low-temperature sensitive material in NO gas sensors
SP  - 1
EP  - 6
DO  - 10.1109/ISSE.2017.8000881
UR  - https://hdl.handle.net/21.15107/rcub_dais_3685
ER  - 

@conference{
author = "Mišković, Goran and Nikolić, Maria Vesna and Luković, Miloljub D. and Vasiljević, Zorka Ž. and Nicolics, Johann and Aleksić, Obrad S.",
year = "2017",
abstract = "Pseudobrookite thick films were obtained by screen printing paste composed of a 1:1.5 molar ratio mixture of starting nanopowders of hematite and anatase, glass frit and organic binder. The films were deposited on alumina substrates with interdigitated electrode geometry. Sintering at 850 °C resulted in the formation of pseudobrookite. X-Ray Diffraction (XRD) analysis showed pseudobrookite with a mixed orthorhombic and monoclinic structure and a small amount of excess rutile. Gas sensing measurements with low NO gas concentrations in air were performed using an in-house gas sensor testing setup in the temperature range 100-300 °C. On the example of one particular gas concentration, results showed that pseudobrookite exhibited a distinct response to NO already at 150 °C that further improved with increased sample temperature.",
publisher = "IEEE",
journal = "2017 40th International Spring Seminar on Electronics Technology (ISSE)",
title = "Pseudobrookite thick films for potential application as low-temperature sensitive material in NO gas sensors",
pages = "1-6",
doi = "10.1109/ISSE.2017.8000881",
url = "https://hdl.handle.net/21.15107/rcub_dais_3685"
}

Mišković, G., Nikolić, M. V., Luković, M. D., Vasiljević, Z. Ž., Nicolics, J.,& Aleksić, O. S.. (2017). Pseudobrookite thick films for potential application as low-temperature sensitive material in NO gas sensors. in 2017 40th International Spring Seminar on Electronics Technology (ISSE)
IEEE., 1-6.
https://doi.org/10.1109/ISSE.2017.8000881
https://hdl.handle.net/21.15107/rcub_dais_3685

Mišković G, Nikolić MV, Luković MD, Vasiljević ZŽ, Nicolics J, Aleksić OS. Pseudobrookite thick films for potential application as low-temperature sensitive material in NO gas sensors. in 2017 40th International Spring Seminar on Electronics Technology (ISSE). 2017;:1-6.
doi:10.1109/ISSE.2017.8000881
https://hdl.handle.net/21.15107/rcub_dais_3685 .

Mišković, Goran, Nikolić, Maria Vesna, Luković, Miloljub D., Vasiljević, Zorka Ž., Nicolics, Johann, Aleksić, Obrad S., "Pseudobrookite thick films for potential application as low-temperature sensitive material in NO gas sensors" in 2017 40th International Spring Seminar on Electronics Technology (ISSE) (2017):1-6,
https://doi.org/10.1109/ISSE.2017.8000881 .,
https://hdl.handle.net/21.15107/rcub_dais_3685 .

TY  - CONF
AU  - Mišković, Goran
AU  - Luković, Miloljub D.
AU  - Nikolić, Maria Vesna
AU  - Vasiljević, Zorka Ž.
AU  - Nicolics, Johann
AU  - Aleksić, Obrad S.
PY  - 2016
UR  - https://dais.sanu.ac.rs/123456789/2368
AB  - Two pseudobrookite (PSB) containing pastes were composed of a mixture of starting nanopowders of hematite (a-Fe2O3) and anatase (TiO2) in the molar ratios 1:1 (referred to as PSB-1) and 1:1.5 (referred to as PSB-1.5), respectively, organic vehicle and glass frit. The pastes were screen printed on alumina (Al2O3) substrates and sintered in a hybrid conveyor furnace at 850 °C/10 min in air. X-ray diffraction (XRD) and scanning electron microscopy (SEM) analysis showed that the resulting thick film samples were composed of pseudobrookite (Fe2TiO5) and also excess rutile (TiO2) in the case of PSB-1.5 samples with a small grained and relatively homogenous microstructure. An electric resistivity with negative temperature coefficient (NTC) was observed. An interdigitated electrode geometry was designed and different electrode spacing (0.2 and 0.25 mm) was analyzed. The electrode structure was printed of PdAg paste. The resistivity of pseudobrookite was measured and analyzed in view of possible applications as a sensor of environmental gases with sufficiently high sensitivity at operating temperatures lower than conventional gas sensor systems.
PB  - IEEE
C3  - 2016 39th International Spring Seminar on Electronics Technology (ISSE)
T1  - Analysis of electronic properties of pseudobrookite thick films with possible application for NO gas sensing
DO  - 10.1109/ISSE.2016.7563226
UR  - https://hdl.handle.net/21.15107/rcub_dais_2368
ER  - 

@conference{
author = "Mišković, Goran and Luković, Miloljub D. and Nikolić, Maria Vesna and Vasiljević, Zorka Ž. and Nicolics, Johann and Aleksić, Obrad S.",
year = "2016",
abstract = "Two pseudobrookite (PSB) containing pastes were composed of a mixture of starting nanopowders of hematite (a-Fe2O3) and anatase (TiO2) in the molar ratios 1:1 (referred to as PSB-1) and 1:1.5 (referred to as PSB-1.5), respectively, organic vehicle and glass frit. The pastes were screen printed on alumina (Al2O3) substrates and sintered in a hybrid conveyor furnace at 850 °C/10 min in air. X-ray diffraction (XRD) and scanning electron microscopy (SEM) analysis showed that the resulting thick film samples were composed of pseudobrookite (Fe2TiO5) and also excess rutile (TiO2) in the case of PSB-1.5 samples with a small grained and relatively homogenous microstructure. An electric resistivity with negative temperature coefficient (NTC) was observed. An interdigitated electrode geometry was designed and different electrode spacing (0.2 and 0.25 mm) was analyzed. The electrode structure was printed of PdAg paste. The resistivity of pseudobrookite was measured and analyzed in view of possible applications as a sensor of environmental gases with sufficiently high sensitivity at operating temperatures lower than conventional gas sensor systems.",
publisher = "IEEE",
journal = "2016 39th International Spring Seminar on Electronics Technology (ISSE)",
title = "Analysis of electronic properties of pseudobrookite thick films with possible application for NO gas sensing",
doi = "10.1109/ISSE.2016.7563226",
url = "https://hdl.handle.net/21.15107/rcub_dais_2368"
}

Mišković, G., Luković, M. D., Nikolić, M. V., Vasiljević, Z. Ž., Nicolics, J.,& Aleksić, O. S.. (2016). Analysis of electronic properties of pseudobrookite thick films with possible application for NO gas sensing. in 2016 39th International Spring Seminar on Electronics Technology (ISSE)
IEEE..
https://doi.org/10.1109/ISSE.2016.7563226
https://hdl.handle.net/21.15107/rcub_dais_2368

Mišković G, Luković MD, Nikolić MV, Vasiljević ZŽ, Nicolics J, Aleksić OS. Analysis of electronic properties of pseudobrookite thick films with possible application for NO gas sensing. in 2016 39th International Spring Seminar on Electronics Technology (ISSE). 2016;.
doi:10.1109/ISSE.2016.7563226
https://hdl.handle.net/21.15107/rcub_dais_2368 .

Mišković, Goran, Luković, Miloljub D., Nikolić, Maria Vesna, Vasiljević, Zorka Ž., Nicolics, Johann, Aleksić, Obrad S., "Analysis of electronic properties of pseudobrookite thick films with possible application for NO gas sensing" in 2016 39th International Spring Seminar on Electronics Technology (ISSE) (2016),
https://doi.org/10.1109/ISSE.2016.7563226 .,
https://hdl.handle.net/21.15107/rcub_dais_2368 .

TY  - CONF
AU  - Mišković, Goran
AU  - Aleksić, Obrad S.
AU  - Nikolić, Maria Vesna
AU  - Nicolics, Johann
AU  - Radosavljević, Goran
AU  - Vasiljević, Zorka Ž.
AU  - Luković, Miloljub D.
AU  - Smetana, Walter
PY  - 2016
UR  - https://dais.sanu.ac.rs/123456789/2313
AB  - This research is focused on structural and electrical characterisation of tin oxide (SnO2) applied as a thick film and investigation of its properties as gas sensitive material. Micron sized SnO2 powder was milled in an agate mill for six hours to fabricate SnO2 nanopowder, which was afterwards sieved by 325 mesh sieve and characterized by XRD and SEM. This powder was used as functional part in the production of thick film tin oxide paste containing a resin vehicle with 4 wt. % nanosize glass frits acting as permanent binder. The glass frits where additionally milled for twelve hours in the agate mills to nanosized powder and sieved by a 325 mesh sieve as well. The achieved thick film paste was screen printed on alumina and fired at 850oC peak temperature for 10 minutes in air. After the sintering process, thick film samples where characterized by X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). The reflectivity was measured on the same samples by UV-VIS spectrophotometer: the band gap was determined from the slope of reflectance. After that a matrix of different interdigitated electrode structure of PdAg paste was printed and sintered using the mentioned sintering conditions. The tin oxide thick film was printed over the interdigitated electrodes as a top layer and sintered again under the same conditions. The total electrical resistance was measured as a function of the electrode spacing and temperature. A negative temperature coefficient (NTC) was identified and measured in the range from room temperature (27°C) to 180°C in a climate chamber. Finally the samples were placed into a gas reactor with NOx and CO gas and the resistance was measured in the same temperature range (27°C-200°C).
PB  - IOP Science
C3  - 5th International Conference on Materials and Applications for Sensors and Transducers (IC-MAST2015)
27–30 September 2015, Mykonos, Greece
T1  - Nanostructured SnO2 thick films for gas sensor application: analysis of structural and electronic properties
DO  - 10.1088/1757-899X/108/1/012003
UR  - https://hdl.handle.net/21.15107/rcub_dais_2313
ER  - 

@conference{
author = "Mišković, Goran and Aleksić, Obrad S. and Nikolić, Maria Vesna and Nicolics, Johann and Radosavljević, Goran and Vasiljević, Zorka Ž. and Luković, Miloljub D. and Smetana, Walter",
year = "2016",
abstract = "This research is focused on structural and electrical characterisation of tin oxide (SnO2) applied as a thick film and investigation of its properties as gas sensitive material. Micron sized SnO2 powder was milled in an agate mill for six hours to fabricate SnO2 nanopowder, which was afterwards sieved by 325 mesh sieve and characterized by XRD and SEM. This powder was used as functional part in the production of thick film tin oxide paste containing a resin vehicle with 4 wt. % nanosize glass frits acting as permanent binder. The glass frits where additionally milled for twelve hours in the agate mills to nanosized powder and sieved by a 325 mesh sieve as well. The achieved thick film paste was screen printed on alumina and fired at 850oC peak temperature for 10 minutes in air. After the sintering process, thick film samples where characterized by X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). The reflectivity was measured on the same samples by UV-VIS spectrophotometer: the band gap was determined from the slope of reflectance. After that a matrix of different interdigitated electrode structure of PdAg paste was printed and sintered using the mentioned sintering conditions. The tin oxide thick film was printed over the interdigitated electrodes as a top layer and sintered again under the same conditions. The total electrical resistance was measured as a function of the electrode spacing and temperature. A negative temperature coefficient (NTC) was identified and measured in the range from room temperature (27°C) to 180°C in a climate chamber. Finally the samples were placed into a gas reactor with NOx and CO gas and the resistance was measured in the same temperature range (27°C-200°C).",
publisher = "IOP Science",
journal = "5th International Conference on Materials and Applications for Sensors and Transducers (IC-MAST2015)
27–30 September 2015, Mykonos, Greece",
title = "Nanostructured SnO2 thick films for gas sensor application: analysis of structural and electronic properties",
doi = "10.1088/1757-899X/108/1/012003",
url = "https://hdl.handle.net/21.15107/rcub_dais_2313"
}

Mišković, G., Aleksić, O. S., Nikolić, M. V., Nicolics, J., Radosavljević, G., Vasiljević, Z. Ž., Luković, M. D.,& Smetana, W.. (2016). Nanostructured SnO2 thick films for gas sensor application: analysis of structural and electronic properties. in 5th International Conference on Materials and Applications for Sensors and Transducers (IC-MAST2015)
27–30 September 2015, Mykonos, Greece
IOP Science..
https://doi.org/10.1088/1757-899X/108/1/012003
https://hdl.handle.net/21.15107/rcub_dais_2313

Mišković G, Aleksić OS, Nikolić MV, Nicolics J, Radosavljević G, Vasiljević ZŽ, Luković MD, Smetana W. Nanostructured SnO2 thick films for gas sensor application: analysis of structural and electronic properties. in 5th International Conference on Materials and Applications for Sensors and Transducers (IC-MAST2015)
27–30 September 2015, Mykonos, Greece. 2016;.
doi:10.1088/1757-899X/108/1/012003
https://hdl.handle.net/21.15107/rcub_dais_2313 .

Mišković, Goran, Aleksić, Obrad S., Nikolić, Maria Vesna, Nicolics, Johann, Radosavljević, Goran, Vasiljević, Zorka Ž., Luković, Miloljub D., Smetana, Walter, "Nanostructured SnO2 thick films for gas sensor application: analysis of structural and electronic properties" in 5th International Conference on Materials and Applications for Sensors and Transducers (IC-MAST2015)
27–30 September 2015, Mykonos, Greece (2016),
https://doi.org/10.1088/1757-899X/108/1/012003 .,
https://hdl.handle.net/21.15107/rcub_dais_2313 .