期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 255, 期 -, 页码 1869-1877出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2017.08.212
关键词
Nanocomposite film; Layer-by-layer self-assembly; humidity sensor; Quartz crystal microbalance
资金
- National Natural Science Foundation of China [51777215, 51407200, 51405257]
- Fundamental Research Funds for the Central Universities of China [15CX05041A]
- Science and Technology Development Plan Project of Qingdao [16-6-2-53-nsh]
This paper demonstrates a layer-by-layer self-assembled polyaniline (PANI)/graphene oxide (GO) film on quartz crystal microbalance (QCM) for humidity sensing. The morphological and compositional properties of PANI/GO composite films were examined by means of SEM, XRD and FT-IR. The humidity sensing properties of the PANI/GO nanocomposite-based QCM sensor were investigated by exposing to a broad range of 0-97%RH. The experimental results showed that the presented PANI/GO nanocomposite sensor has a high sensitivity, a good repeatability and fast response/recovery characteristics, which surpasses the previous reported counterparts. Moreover, the underlying humidity sensing mechanism of the PANI/GO-based QCM sensor was discussed by using Langmuir adsorption model. This work highlights the unique advantage of layer-by-layer self-assembled route for QCM sensor fabrication. (C) 2017 Elsevier B.V. All rights reserved.
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