Open AccessCross‐sensitivity reduction of QCM humidity sensor using graphene oxide membrane as filter layer
Author(s) -
Liu Bin,
Chen Xiangdong,
Li Ning,
Li Xiaoyu,
Yao Yao
Publication year - 2014
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2014.2735
Subject(s) - graphene , materials science , sensitivity (control systems) , humidity , reduction (mathematics) , layer (electronics) , oxide , optoelectronics , filter (signal processing) , membrane , electronic engineering , nanotechnology , electrical engineering , engineering , chemistry , physics , biochemistry , metallurgy , thermodynamics , geometry , mathematics
A new approach to greatly reduce the cross‐sensitivity of a quartz crystal microbalance (QCM) humidity sensor is proposed. A graphene oxide (GO) membrane, which acts as a filter layer, is added to the sensor structure. Since the GO membrane enables selective permeation of water molecules, the introduction of the GO filter membrane into the sensor structure greatly reduces the cross‐sensitivity of the humidity sensor to other gases.