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Pseudobrookite thick films for potential application as low-temperature sensitive material in NO gas sensors

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2017
Authors
Mišković, Goran
Nikolić, Maria Vesna
Luković, Miloljub D.
Vasiljević, Zorka Ž.
Nicolics, Johann
Aleksić, Obrad S.
Conference object (Published version)
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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.
Keywords:
air / alumina / alumina substrates / anatase / excess rutile / gas concentrations / gas sensing measurements / gas sensors / glass frit / hematite / in-house gas sensor testing setup / interdigitated electrode geometry / low-temperature sensitive material / metals / mixed orthorhombic-monoclinic structure / molar ratio mixture / nanoparticles / nitrogen compounds / nitrogen oxide gas sensors / organic binder / pseudobrookite thick films / resistance / screen printing paste / sintering / starting nanopowders / temperature / temperature measurement / Temperature sensors / thick films / X-ray diffraction / XRD analysis
Source:
2017 40th International Spring Seminar on Electronics Technology (ISSE), 2017, 1-6
Publisher:
  • IEEE

DOI: 10.1109/ISSE.2017.8000881

ISBN: 978-1-5386-0582-0

ISSN: 2161-2536

Scopus: 2-s2.0-85029899359
[ Google Scholar ]
1
URI
http://dais.sanu.ac.rs/123456789/3685
Collections
  • ITN SANU - Opšta kolekcija / ITS SASA - General collection
Institution
Институт техничких наука САНУ / Institute of Technical Sciences SASA

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