SnO2-Surfactant Composite Films for Superior Gas Sensitivity

International Journal of Applied Physics

© 2016 by SSRG - IJAP Journal

Volume 3 Issue 3

Year of Publication : 2016

Authors : Mohammed Afzal, P.S.Naik, L.I.Nadaf, Irfan N. Shaikh

10.14445/23500301/IJAP-V3I5P101

How to Cite?

Mohammed Afzal, P.S.Naik, L.I.Nadaf, Irfan N. Shaikh, "SnO2-Surfactant Composite Films for Superior Gas Sensitivity," SSRG International Journal of Applied Physics, vol. 3,  no. 3, pp. 1-5, 2016. Crossref, https://doi.org/10.14445/23500301/IJAP-V3I5P101

Abstract:

Porous Tin Oxide (SnO2) thin films have been prepared using Chemical Spray Pyrolysis technique in conjunction with surfactant Triton X-100. The effect of surfactant on the gas sensing properties of SnO2 have been investigated using characterization techniques, XRD, SEM, EDAX, UV-Visible spectroscopy. SnO2-Surfactant composite films were deposited by adding Triton X-100 in step of 1%, 2%, 3%, 4%, 5%, and 6% to the precursor solution of SnCl4 in Ethanol. The results reveal the successful enhancement of gas sensitivity of SnO2- Triton X-100 composite thin films as compared with pristine SnO2. Films of SnO2 with 4% Triton X-100 have exhibited maximum sensitivity for H2S gas, whereas the films with less and more than 4% Triton X-100 has shown less sensitivity. Thus, the percentage of Triton X-100 has been optimized to achieve maximum sensitivity.

Keywords:

SnO2 –Triton X100, Gas Sensor, Spray Pyrolysis, Composite Films

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