Impedance response of pseudobrookite thick films with a sandwich configuration
Аутори
Luković, Miloljub D.
Nikolić, Maria Vesna

Vasiljević, Zorka

Blaz, Nelu
Luković, Snežana
Aleksić, Obrad
Конференцијски прилог

Метаподаци
Приказ свих података о документуАпстракт
We have investigated the impedance response of pseudobrookite thick films screen printed on alumina substrate in the temperature interval from room temperature to 350 °C in the frequency range 100 Hz-1 MHz. Two thick film pastes were made containing starting hematite and anatase nanopowders (in the 1:1 and 1:1.33 molar ratio - containing excess anatase), glass fritt and organic vehicle. A sandwich PdAg electrode structure was obtained by first printing a PdAg electrode, followed by 3 layers of PSB paste and a PdAg electrode on top with a mesh structure. Each layer was sintered at 850 °C in a hybrid conveyor furnace. XRD analysis confirmed the formation of pseudobrookite with an orthorhombic crystal structure. SEM analysis of thick film surfaces and cross sections showed the formation of a porous structure with rod-shaped grains. The impedance response of pseudobrookite thick films, showed a decrease with the rise in sample temperature. It was analyzed using an equivalent circuit reflec...ting the dominant influence of grain boundaries.
Кључне речи:
thick films / impedance / pseudobrookite / grain boundary / aluminaИзвор:
2017 40th International Spring Seminar on Electronics Technology (ISSE), 2017, 1-5Издавач:
- IEEE
Пројекти:
- 0-3D наноструктуре за примену у електроници и обновљивим изворима енергије: синтеза, карактеризација и процесирање (RS-45007)
- Иновативне електронске компоненте и системи базирани на неорганским и органским технологијама уграђени у робе и производе широке потрошње (RS-32016)
DOI: 10.1109/ISSE.2017.8000886
ISBN: 978-1-5386-0582-0
ISSN: 2161-2536
[ Google Scholar ]URI
http://www.itn.sanu.ac.rs/opus4/frontdoor/index/index/docId/1382http://dais.sanu.ac.rs/123456789/2357