Study of electrical and gas sensing properties of CeO2 Thin films Prepared by Spin Coating Technique
Vinayak Vishram Kadam
In the current research work, pure CeO2 nanoparticles (NPs) were synthesized by using sol-gel method. The Cerium (III) nitrate hexahydrate [Ce (NO3)3.6H2O] was used as source of Cerium. By using spin coating technique CeO2 NPs thin films were prepared on glass substrate. The electrical and gas sensing properties of prepared thin films were studied. The electrical properties of prepared thin films were studied on the basis of resistivity, temperature coefficient ratio and activation energy. The prepared films were exposed to reducing gases like H2S, LPG, methanol and ethanol. The maximum sensitivity has been found to the LPG which is 68.11% at 200 °C temperature and concentrations of LPG was 1000 ppm. Prepared films also show fast response time (~ 15 sec) and recovery time (~ 57 sec).
Sol-gel, Cerium nitrate, thin films, LPG, response time
Study of electrical and gas sensing properties of CeO2 Thin films Prepared by Spin Coating Technique. Vinayak Vishram Kadam. 2023. IJIRCT, Volume 9, Issue 4. Pages 1-7. https://www.ijirct.org/viewPaper.php?paperId=2307007