High-performance humidity sensor based on plasma modified graphene. (1st October 2022)

• Record Type: Journal Article
• Authors: Bai, Lin; Wang, Wenhui; Yu, Yuanfang; Liu, Kaiyang; Ni, Zhenhua
• Is Part Of: Applied physics express. Volume 15:Number 10(2022)
• Publication Date: 2022-10-01
• Subjects: humidity sensor -- oxygen plasma -- modified graphene -- defect; Physics -- Periodicals; Technology -- Periodicals; 621.05
• DOI: 10.35848/1882-0786/ac8d48
• Languages: English
• ISSNs: 1882-0778

Abstract

Abstract: Humidity monitoring has flourished in many advanced applications, such as environmental monitoring, industries, and medical health. Humidity devices with fast response and high sensitivity are in high demand for complicated application conditions. In this work, we bridge this gap by employing oxygen plasma treatment in a graphene-based humidity sensor. The sensitivity can be regulated from −99.2% to 153.1%, meanwhile retaining a high-speed response with rise and fall times ∼58 ms and ∼661 ms. This work provides a promising strategy for humidity detection with fast response and high sensitivity.