NO2 and Humidity Sensing Characteristics of Few-layer Graphene

Anupama Ghosh; Dattatray J. Late; L. S. Panchakarla; A. Govindaraj; C. N. R. Rao

doi:10.1080/17458080903115379

NO2 and Humidity Sensing Characteristics of Few-layer Graphene

Chemical Physics 2015-05-13 v1

Authors: Anupama Ghosh , Dattatray J. Late , L. S. Panchakarla , A. Govindaraj , C. N. R. Rao

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Abstract

Sensing characteristics of few-layer graphenes for NO2 and humidity have been investigated with graphene samples prepared by the thermal exfoliation of graphitic oxide (EG), conversion of nanodiamond (DG) and arc-discharge of graphite in hydrogen (HG). The sensitivity for NO2 is found to be highest with DG. Nitrogen-doped HG (n-type) shows increased sensitivity for NO2 compared to pure HG. The highest sensitivity for humidity is observed with HG. The sensing characteristics of graphene have been examined for different aliphatic alcohols and the sensitivity is found to vary with the chain length and branching.

Keywords

graphene NO2 sensing humidity sensing thermal exfoliation nanodiamond arc-discharge nitrogen doping

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@article{arxiv.0905.2852,
  title  = {NO2 and Humidity Sensing Characteristics of Few-layer Graphene},
  author = {Anupama Ghosh and Dattatray J. Late and L. S. Panchakarla and A. Govindaraj and C. N. R. Rao},
  journal= {arXiv preprint arXiv:0905.2852},
  year   = {2015}
}

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19 pages, 7 figures

NO2 and Humidity Sensing Characteristics of Few-layer Graphene

Abstract

Keywords

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