Recent advances in graphene-based humidity sensors

Chao Lv, Cun Hu, Junhong Luo, Shuai Liu, Yan Qiao, Zhi Zhang, Jiangfeng Song, Yan Shi, Jinguang Cai, Akira Watanabe

Research output: Contribution to journalReview article

17 Citations (Scopus)

Abstract

Humidity sensors are a common, but important type of sensors in our daily life and industrial processing. Graphene and graphene-based materials have shown great potential for detecting humidity due to their ultrahigh specific surface areas, extremely high electron mobility at room temperature, and low electrical noise due to the quality of its crystal lattice and its very high electrical conductivity. However, there are still no specific reviews on the progresses of graphene-based humidity sensors. This review focuses on the recent advances in graphene-based humidity sensors, starting from an introduction on the preparation and properties of graphene materials and the sensing mechanisms of seven types of commonly studied graphene-based humidity sensors, and mainly summarizes the recent advances in the preparation and performance of humidity sensors based on pristine graphene, graphene oxide, reduced graphene oxide, graphene quantum dots, and a wide variety of graphene based composite materials, including chemical modification, polymer, metal, metal oxide, and other 2D materials. The remaining challenges along with future trends in high-performance graphene-based humidity sensors are also discussed.

Original languageEnglish
Article number422
JournalNanomaterials
Volume9
Issue number3
DOIs
Publication statusPublished - 2019 Mar

Keywords

  • Chemical modified graphene
  • Graphene
  • Graphene oxide
  • Graphene quantum dots
  • Graphene/2D materials
  • Graphene/metal oxide
  • Graphene/polymer
  • Humidity sensors
  • Reduced graphene oxide

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Materials Science(all)

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  • Cite this

    Lv, C., Hu, C., Luo, J., Liu, S., Qiao, Y., Zhang, Z., Song, J., Shi, Y., Cai, J., & Watanabe, A. (2019). Recent advances in graphene-based humidity sensors. Nanomaterials, 9(3), [422]. https://doi.org/10.3390/nano9030422