Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite
Authorized Users Only
2020
Authors
Nikolić, Maria Vesna
Vasiljević, Zorka Ž.

Dojčinović, Milena

Vujančević, Jelena

Radovanović, Milan
Conference object (Published version)

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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%.
Keywords:
iron manganite / thick films / complex impedance / relative humiditySource:
2020 43rd International Spring Seminar on Electronics Technology (ISSE), 2020, 1-5Publisher:
- IEEE
Funding / projects:
- Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200053 (University of Belgrade, Institute for Multidisciplinary Research) (RS-200053)
- Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200175 (Institute of Technical Sciences of SASA, Belgrade) (RS-200175)
- Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200156 (University of Novi Sad, Faculty of Technical Science) (RS-200156)
Note:
- Peer-reviewed manuscript: https://hdl.handle.net/21.15107/rcub_dais_8965
Related info:
DOI: 10.1109/ISSE49702.2020.9120967
ISBN: 978-1-7281-6773-2
ISSN: 2161-2536
Scopus: 2-s2.0-85087611242
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - 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 .