Investigation of sensitivity and selectivity of ZnO thin film to volatile organic compoundsReport as inadecuate




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Journal of Theoretical and Applied Physics

, Volume 11, Issue 2, pp 157–163

First Online: 06 June 2017Received: 17 December 2016Accepted: 30 May 2017DOI: 10.1007-s40094-017-0253-0

Cite this article as: Teimoori, F., Khojier, K. & Dehnavi, N.Z. J Theor Appl Phys 2017 11: 157. doi:10.1007-s40094-017-0253-0

Abstract

This research addresses a detailed study on the sensitivity and selectivity of ZnO thin film to volatile organic compound VOC vapors that can be used for the development of VOC sensors. The ZnO thin film of 100 nm thickness was prepared by post-annealing of e-beam evaporated Zn thin film. The sample was structurally, morphologically, and chemically characterized by X-ray diffraction and field emission scanning electron microscopy analyses. The sensitivity, selectivity, and detection limit of the sample were tested with respect to a wide range of common VOC vapors, including acetone, formaldehyde, acetic acid, formic acid, acetylene, toluene, benzene, ethanol, methanol, and isopropanol in the temperature range of 200–400 °C. The results show that the best sensitivity and detection limit of the sample are related to acetone vapor in the studied temperature range. The ZnO thin film-based acetone sensor also shows a good reproducibility and stability at the operating temperature of 280 °C.

KeywordsZnO Thin film Sensitivity Selectivity VOCs 



Author: F. Teimoori - K. Khojier - N. Z. Dehnavi

Source: https://link.springer.com/







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