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 articlepeer-review

    41 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)

    Fingerprint

    Dive into the research topics of 'Recent advances in graphene-based humidity sensors'. Together they form a unique fingerprint.

    Cite this