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Notice of retraction
Vol. 34, No. 8(3), S&M3042

Notice of retraction
Vol. 32, No. 8(2), S&M2292

Print: ISSN 0914-4935
Online: ISSN 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
Sensors and Materials
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Sensors and Materials, Volume 34, Number 6(2) (2022)
Copyright(C) MYU K.K.
pp. 2065-2074
S&M2956 Letter
https://doi.org/10.18494/SAM3793
Published: June 15, 2022

Fabrication and Humidity Sensing of Reduced Graphene Oxide/Polyaniline Composite Film on Flexible Paper Substrate [PDF]

Yonggang Du, Xiuhua Li, Xinhui Zhao, Ning Wang, and Dailin Li

(Received January 12, 2022; Accepted March 30, 2022 )

Keywords: reduced graphene oxide, polyaniline, paper substrate, filtration, humidity sensing

We present a flexible humidity sensor comprising a reduced graphene oxide/polyaniline (RGO/PANI) composite film on a polypropylene filter paper substrate. Graphene oxide was reduced with sodium borohydride (NaBH4), then PANI was prepared by the oxidative polymerization of aniline to produce the RGO/PANI composite. The suspension of the as-prepared RGO/PANI composite was simply filtered on the paper substrate for sensor fabrication. The structure and morphology of the obtained composite were investigated by SEM, Fourier transform IR spectroscopy, and Raman spectroscopy. The experimental results revealed that the RGO/PANI composite film on the paper substrate can be used for humidity sensing with low hysteresis, good repeatability, and a large response in a broad humidity range. Moreover, our sensor has the potential to be applied in wearable devices because of the flexible substrate.

Corresponding author: Yonggang Du


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Cite this article
Yonggang Du, Xiuhua Li, Xinhui Zhao, Ning Wang, and Dailin Li, Fabrication and Humidity Sensing of Reduced Graphene Oxide/Polyaniline Composite Film on Flexible Paper Substrate, Sens. Mater., Vol. 34, No. 6, 2022, p. 2065-2074.



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