Issue 61, 2016

Experimental investigations on NO2 sensing of pure ZnO and PANI–ZnO composite thin films

Abstract

In the present work, comparative investigations on NO2 gas sensing properties of the hybrid nanocomposite thin films of polyaniline (PANI), ZnO and PANI–ZnO towards NO2 gas at room temperature have been reported. The effect of concentration of PANI in the composite thin films on NO2 gas sensing has been investigated. Structural and surface morphological characterizations have been carried out using X-ray diffraction (XRD) and scanning electron microscopy (SEM) respectively. The presence of 5 wt% PANI in the composite films was found to give a maximum sensing response of ∼6.11 × 102 towards 20 ppm NO2 gas having fast response and recovery time of about 2.16 min and 3.5 min respectively.

Graphical abstract: Experimental investigations on NO2 sensing of pure ZnO and PANI–ZnO composite thin films

Article information

Article type
Paper
Submitted
17 Mar 2016
Accepted
24 May 2016
First published
26 May 2016

RSC Adv., 2016,6, 56149-56158

Experimental investigations on NO2 sensing of pure ZnO and PANI–ZnO composite thin films

R. K. Sonker, B. C. Yadav, A. Sharma, M. Tomar and V. Gupta, RSC Adv., 2016, 6, 56149 DOI: 10.1039/C6RA07103A

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