De, Arijit and Antony, Graceson and Kundu, Susmita (2017) Enhanced ethanol sensing performance of gel calcined Cd-Sn oxide nanocomposites. Journal of Materials Science-Materials in Electronics, 28 (2). pp. 1555-1561. ISSN 0957-4522

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Cd-Sn oxide nanocomposite powders were synthesized by a facile gel calcination method, starting from precursor sol having Cd: Sn ratio as 2: 1. The powders were characterized in terms of their phase formation behaviour and morphological features using X-ray diffractometer, FTIR, UV-visible spectra and FESEM analyses. Sensor fabricated from nanocomposite calcined at 1050 degrees C exhibited excellent ethanol sensing performance, similar to 86 % for 50 ppm ethanol vapour. It also revealed quite a good sensitivity at concentration down to 5 ppm vapour. Sensors were quite stable and selective towards ethanol vapour. A possible mechanism for enhanced performance due to formation of preferential perovskite cadmium stannite phase has been discussed.

Item Type: Article
Subjects: Engineering Materials
Divisions: Sensor and Actuator
Depositing User: Bidhan Chaudhuri
Date Deposited: 23 Jan 2018 11:40
Last Modified: 23 Jan 2018 11:40

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