Transparent, flexible, and stretchable WS2 based humidity sensors for electronic skin

doi:10.1039/c7nr01016h

CORC > 重庆绿色智能技术研究院 > 中国科学院重庆绿色智能技术研究院 > 微纳制造与系统集成研究中心

	Transparent, flexible, and stretchable WS2 based humidity sensors for electronic skin
	Guo, Huayang 1,2; Lan, Changyong 1,2; Zhou, Zhifei 1,2; Sun, Peihua 1,2; Wei, Dapeng3 ; Li, Chun 1,2
刊名	NANOSCALE
	2017-05-21
卷号	9 期号:19 页码:6246-6253
ISSN号	2040-3364
DOI	10.1039/c7nr01016h
通讯作者	Li, C (reprint author), Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Devic, 4,Sect 2,North Jianshe Rd, Chengdu 610054, Peoples R China. ; Li, C (reprint author), Univ Elect Sci & Technol China, Sch Optoelect Informat, 4,Sect 2,North Jianshe Rd, Chengdu 610054, Peoples R China.
英文摘要	Skin-mountable chemical sensors using flexible chemically sensitive nanomaterials are of great interest for electronic skin (e-skin) application. To build these sensors, the emerging atomically thin two-dimensional (2D) layered semiconductors could be a good material candidate. Herein, we show that a large-area WS2 film synthesized by sulfurization of a tungsten film exhibits high humidity sensing performance both in natural flat and high mechanical flexible states (bending curvature down to 5 mm). The conductivity of as-synthesized WS2 increases sensitively over a wide relative humidity range (up to 90%) with fast response and recovery times in a few seconds. By using graphene as electrodes and thin polydimethylsiloxane (PDMS) as substrate, a transparent, flexible, and stretchable humidity sensor was fabricated. This senor can be well laminated onto skin and shows stable water moisture sensing behaviors in the undeformed relaxed state as well as under compressive and tensile loadings. Furthermore, its high sensing performance enables real-time monitoring of human breath, indicating a potential mask-free breath monitoring for healthcare application. We believe that such a skin-activity compatible WS2 humidity sensor may shed light on developing low power consumption wearable chemical sensors based on 2D semiconductors.
资助项目	Innovation Research Groups of the National Natural Science Foundation of China (NSFC)[61421002] ; Natural Science Foundation of China[61475030] ; Natural Science Foundation of China[615224030] ; Natural Science Foundation of China[61605024] ; Central University Basic Scientific Research Business Expenses[ZYGX2015Z001]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000401649700004
内容类型	期刊论文
源URL	[http://172.16.51.4:88/handle/2HOD01W0/224]
专题	微纳制造与系统集成研究中心
通讯作者	Li, Chun
作者单位	1.Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Devic, 4,Sect 2,North Jianshe Rd, Chengdu 610054, Peoples R China 2.Univ Elect Sci & Technol China, Sch Optoelect Informat, 4,Sect 2,North Jianshe Rd, Chengdu 610054, Peoples R China 3.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Fangzheng Ave,Shuitu Hitech Ind Pk, Chongqing 400714, Peoples R China
推荐引用方式 GB/T 7714	Guo, Huayang,Lan, Changyong,Zhou, Zhifei,et al. Transparent, flexible, and stretchable WS2 based humidity sensors for electronic skin[J]. NANOSCALE,2017,9(19):6246-6253.
APA	Guo, Huayang,Lan, Changyong,Zhou, Zhifei,Sun, Peihua,Wei, Dapeng,&Li, Chun.(2017).Transparent, flexible, and stretchable WS2 based humidity sensors for electronic skin.NANOSCALE,9(19),6246-6253.
MLA	Guo, Huayang,et al."Transparent, flexible, and stretchable WS2 based humidity sensors for electronic skin".NANOSCALE 9.19(2017):6246-6253.