Work

Manufacture of flexible humidity sensors with high sensitivity and fast response using MoS2/graphene oxide composite

Year: 2024

Type: conference-paper

Abstract: Humidity monitoring is very necessary for industrial production, medical and health care, environmental monitoring and household use. Resistive humidity sensor is one of common types of humidity sensors due to simple preparation and electrical readout. MoS2, a 2D material, has the great potential to be used for humidity sensing due to its high electrocatalytic activity, large specific surface area, and a wealth of surface-responsive sites. GO (graphene oxide) has excellent hydrophilic properties due to the abundance of oxygen-containing functional groups (including hydroxyl, epoxy, and carboxylic acid groups) on its surface. In addition, sensors based on pure MoS2 or pure GO are limited in either sensitivity or response and recovery time. In this work, the flexible humidity sensor based on MoS2/GO composite films was realized, featuring high responsivity (98%), fast response/recovery time (1.3/12.1s), and good stability.

Source: Journal of Physics Conference Series

DOI: 10.1088/1742-6596/2809/1/012008

Authors: Gengwu Ge, Ningfeng Ke, Jie Ding, Wendong Zhang, Xuge Fan

Institutions: Beijing Institute of Technology, North University of China

Language: English

Topic: Gas Sensing Nanomaterials and Sensors

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond

Funders: National Natural Science Foundation of China, Beijing Institute of Technology, National Outstanding Youth Science Fund Project of National Natural Science Foundation of China, National Key Research and Development Program of China

Awards: G1708766410, G5585178572, G5784715793