Fast Response and High Sensitivity ZnO/glass Surface Acoustic Wave Humidity Sensors Using Graphene Oxide Sensing Layer

We report ZnO/glass surface acoustic wave (SAW) humidity sensors with high sensitivity and fast response using graphene oxide sensing layer. The frequency shift of the sensors is exponentially correlated to the humidity change, induced mainly by mass loading effect rather than the complex impedance...

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Autores principales: Xuan, Weipeng, He, Mei, Meng, Nan, He, Xingli, Wang, Wenbo, Chen, Jinkai, Shi, Tianjin, Hasan, Tawfique, Xu, Zhen, Xu, Yang, Luo, J. K.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2014
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4244623/
https://www.ncbi.nlm.nih.gov/pubmed/25425458
http://dx.doi.org/10.1038/srep07206
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author Xuan, Weipeng
He, Mei
Meng, Nan
He, Xingli
Wang, Wenbo
Chen, Jinkai
Shi, Tianjin
Hasan, Tawfique
Xu, Zhen
Xu, Yang
Luo, J. K.
author_facet Xuan, Weipeng
He, Mei
Meng, Nan
He, Xingli
Wang, Wenbo
Chen, Jinkai
Shi, Tianjin
Hasan, Tawfique
Xu, Zhen
Xu, Yang
Luo, J. K.
author_sort Xuan, Weipeng
collection PubMed
description We report ZnO/glass surface acoustic wave (SAW) humidity sensors with high sensitivity and fast response using graphene oxide sensing layer. The frequency shift of the sensors is exponentially correlated to the humidity change, induced mainly by mass loading effect rather than the complex impedance change of the sensing layer. The SAW sensors show high sensitivity at a broad humidity range from 0.5%RH to 85%RH with < 1 sec rise time. The simple design and excellent stability of our GO-based SAW humidity sensors, complemented with full humidity range measurement, highlights their potential in a wide range of applications.
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spelling pubmed-42446232014-12-05 Fast Response and High Sensitivity ZnO/glass Surface Acoustic Wave Humidity Sensors Using Graphene Oxide Sensing Layer Xuan, Weipeng He, Mei Meng, Nan He, Xingli Wang, Wenbo Chen, Jinkai Shi, Tianjin Hasan, Tawfique Xu, Zhen Xu, Yang Luo, J. K. Sci Rep Article We report ZnO/glass surface acoustic wave (SAW) humidity sensors with high sensitivity and fast response using graphene oxide sensing layer. The frequency shift of the sensors is exponentially correlated to the humidity change, induced mainly by mass loading effect rather than the complex impedance change of the sensing layer. The SAW sensors show high sensitivity at a broad humidity range from 0.5%RH to 85%RH with < 1 sec rise time. The simple design and excellent stability of our GO-based SAW humidity sensors, complemented with full humidity range measurement, highlights their potential in a wide range of applications. Nature Publishing Group 2014-11-26 /pmc/articles/PMC4244623/ /pubmed/25425458 http://dx.doi.org/10.1038/srep07206 Text en Copyright © 2014, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Xuan, Weipeng
He, Mei
Meng, Nan
He, Xingli
Wang, Wenbo
Chen, Jinkai
Shi, Tianjin
Hasan, Tawfique
Xu, Zhen
Xu, Yang
Luo, J. K.
Fast Response and High Sensitivity ZnO/glass Surface Acoustic Wave Humidity Sensors Using Graphene Oxide Sensing Layer
title Fast Response and High Sensitivity ZnO/glass Surface Acoustic Wave Humidity Sensors Using Graphene Oxide Sensing Layer
title_full Fast Response and High Sensitivity ZnO/glass Surface Acoustic Wave Humidity Sensors Using Graphene Oxide Sensing Layer
title_fullStr Fast Response and High Sensitivity ZnO/glass Surface Acoustic Wave Humidity Sensors Using Graphene Oxide Sensing Layer
title_full_unstemmed Fast Response and High Sensitivity ZnO/glass Surface Acoustic Wave Humidity Sensors Using Graphene Oxide Sensing Layer
title_short Fast Response and High Sensitivity ZnO/glass Surface Acoustic Wave Humidity Sensors Using Graphene Oxide Sensing Layer
title_sort fast response and high sensitivity zno/glass surface acoustic wave humidity sensors using graphene oxide sensing layer
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4244623/
https://www.ncbi.nlm.nih.gov/pubmed/25425458
http://dx.doi.org/10.1038/srep07206
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