Application of Nanocrystalline Pseudobrookite (Fe2TiO5) Thick Films for Humidity Sensing
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2018
Konferencijski prilog (Recenzirana verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Pseudobrookite nanocrystalline thick films were screen printed on alumina substrate with small interdigitated PdAg electrodes (width 6 mm, length 12 mm, electrode spacing 0.2 mm) and fired at 600 degrees C for 30 minutes. Scanning electron microscopy (SEM) of the thick film surface confirmed the formation of a porous structure consisting of agglomerated nanocrystalline grains of pseudobrookite. Impedance response of pseudobrookite thick film samples was measured in a humidity chamber at operating temperatures of 25 and 50 degrees C in the relative humidity (RH) range 40-90% and frequency range 42 Hz-1 MHz. At the lowest frequency of 42 Hz at 25 degrees C the impedance reduced. 7 times (from 35.74 MO for RH 40% to 4.91 MO for RH 90%) and at 50 degrees C. 33 times (from 30.98 MO for RH 40% to 0.944 MO for RH 90%). Low hysteresis (1.82 and 3.65%) was obtained at 25 and 50 degrees C, respectively. Complex impedance was analyzed using an equivalent circuit consisting of parallel impedance a...nd constant phase (CPE) element showing the dominant influence of grain boundaries.
Ključne reči:
Thick f / Silver alloys / Scanning electron microscopy / Palladium alloys / Iron compounds / Humidity sensors / Grain boundaries / Equivalent circuits / Electrodes / Binary alloys / Aluminum oxide / AluminaIzvor:
Proceedings of the International Spring Seminar on Electronics Technology, 2018, 2018-MayIzdavač:
- IEEE Computer Society
Finansiranje / projekti:
- 0-3D nanostrukture za primenu u elektronici i obnovljivim izvorima energije: sinteza, karakterizacija i procesiranje (RS-45007)
- Inovativne elektronske komponente i sistemi bazirani na neorganskim i organskim tehnologijama ugrađeni u robe i proizvode široke potrošnje (RS-32016)
DOI: 10.1109/ISSE.2018.8443672
ISBN: 978-153865731-7
ISSN: 2161-2528
WoS: 000449866600046
Scopus: 2-s2.0-85053300822
Institucija/grupa
Institut za multidisciplinarna istraživanjaTY - CONF AU - Nikolić, Maria Vesna AU - Luković, Miloljub AU - Vasiljević, Zorka Z AU - Vujančević, Jelena PY - 2018 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/1182 AB - Pseudobrookite nanocrystalline thick films were screen printed on alumina substrate with small interdigitated PdAg electrodes (width 6 mm, length 12 mm, electrode spacing 0.2 mm) and fired at 600 degrees C for 30 minutes. Scanning electron microscopy (SEM) of the thick film surface confirmed the formation of a porous structure consisting of agglomerated nanocrystalline grains of pseudobrookite. Impedance response of pseudobrookite thick film samples was measured in a humidity chamber at operating temperatures of 25 and 50 degrees C in the relative humidity (RH) range 40-90% and frequency range 42 Hz-1 MHz. At the lowest frequency of 42 Hz at 25 degrees C the impedance reduced. 7 times (from 35.74 MO for RH 40% to 4.91 MO for RH 90%) and at 50 degrees C. 33 times (from 30.98 MO for RH 40% to 0.944 MO for RH 90%). Low hysteresis (1.82 and 3.65%) was obtained at 25 and 50 degrees C, respectively. Complex impedance was analyzed using an equivalent circuit consisting of parallel impedance and constant phase (CPE) element showing the dominant influence of grain boundaries. PB - IEEE Computer Society C3 - Proceedings of the International Spring Seminar on Electronics Technology T1 - Application of Nanocrystalline Pseudobrookite (Fe2TiO5) Thick Films for Humidity Sensing VL - 2018-May DO - 10.1109/ISSE.2018.8443672 ER -
@conference{ author = "Nikolić, Maria Vesna and Luković, Miloljub and Vasiljević, Zorka Z and Vujančević, Jelena", year = "2018", abstract = "Pseudobrookite nanocrystalline thick films were screen printed on alumina substrate with small interdigitated PdAg electrodes (width 6 mm, length 12 mm, electrode spacing 0.2 mm) and fired at 600 degrees C for 30 minutes. Scanning electron microscopy (SEM) of the thick film surface confirmed the formation of a porous structure consisting of agglomerated nanocrystalline grains of pseudobrookite. Impedance response of pseudobrookite thick film samples was measured in a humidity chamber at operating temperatures of 25 and 50 degrees C in the relative humidity (RH) range 40-90% and frequency range 42 Hz-1 MHz. At the lowest frequency of 42 Hz at 25 degrees C the impedance reduced. 7 times (from 35.74 MO for RH 40% to 4.91 MO for RH 90%) and at 50 degrees C. 33 times (from 30.98 MO for RH 40% to 0.944 MO for RH 90%). Low hysteresis (1.82 and 3.65%) was obtained at 25 and 50 degrees C, respectively. Complex impedance was analyzed using an equivalent circuit consisting of parallel impedance and constant phase (CPE) element showing the dominant influence of grain boundaries.", publisher = "IEEE Computer Society", journal = "Proceedings of the International Spring Seminar on Electronics Technology", title = "Application of Nanocrystalline Pseudobrookite (Fe2TiO5) Thick Films for Humidity Sensing", volume = "2018-May", doi = "10.1109/ISSE.2018.8443672" }
Nikolić, M. V., Luković, M., Vasiljević, Z. Z.,& Vujančević, J.. (2018). Application of Nanocrystalline Pseudobrookite (Fe2TiO5) Thick Films for Humidity Sensing. in Proceedings of the International Spring Seminar on Electronics Technology IEEE Computer Society., 2018-May. https://doi.org/10.1109/ISSE.2018.8443672
Nikolić MV, Luković M, Vasiljević ZZ, Vujančević J. Application of Nanocrystalline Pseudobrookite (Fe2TiO5) Thick Films for Humidity Sensing. in Proceedings of the International Spring Seminar on Electronics Technology. 2018;2018-May. doi:10.1109/ISSE.2018.8443672 .
Nikolić, Maria Vesna, Luković, Miloljub, Vasiljević, Zorka Z, Vujančević, Jelena, "Application of Nanocrystalline Pseudobrookite (Fe2TiO5) Thick Films for Humidity Sensing" in Proceedings of the International Spring Seminar on Electronics Technology, 2018-May (2018), https://doi.org/10.1109/ISSE.2018.8443672 . .