A button switch inspired duplex hydrogel sensor based on both triboelectric and piezoresistive effects for detecting dynamic and static pressure

作     者：Zhensheng Chen Jiahao Yu Xiaoxi Zhang Haozhe Zeng Yunjia Li Jin Wu Kai Tao Zhensheng Chen;Jiahao Yu;Xiaoxi Zhang;Haozhe Zeng;Yunjia Li;Jin Wu;Kai Tao

作者机构：Ministry of Education Key Laboratory of Micro and Nano Systems for AerospaceNorthwestern Polytechnical UniversityXi’an 710072China AVIC Xi’an Aircraft Industry Group Company Ltd.Xi’an 710089China School of Electrical EngineeringXi’an Jiaotong UniversityXi’an 710049China State Key Laboratory of Optoelectronic Materials and Technologies and the Guangdong Province Key Laboratory of Display Material and TechnologySchool of Electronics and Information TechnologySun Yat-sen UniversityGuangzhou 510275China 

出 版 物：《Nanotechnology and Precision Engineering》 (纳米技术与精密工程（英文）)

年 卷 期：2022年第5卷第2期

页      面：12-20页

核心收录：

学科分类：0809[工学-电子科学与技术（可授工学、理学学位）] 080202[工学-机械电子工程] 08[工学] 0802[工学-机械工程] 0811[工学-控制科学与工程] 

基　　金：This work was supported by the National Natural Science Foundation of China(Grant Nos.51705429 and 61801525) the Fundamental Research Funds for the Central Universities,Guangdong Natural Science Funds(Grant No.2018A030313400) 

主　　题：Duplex hydrogel sensor Triboelectric nanogenerator Piezoresistive sensor Dynamic and static sensing 

摘      要：The capability to sense complex pressure variations comprehensively is vital for wearable electronics and flexible human–machine *** this paper,inspired by button switches,a duplex tactile sensor based on the combination of triboelectric and piezoresistive effects is designed and *** of its excellent mechanical strength and electrical stability,a double-networked ionic hydrogel is used as both the conductive electrode and elastic current *** addition,micro-pyramidal patterned polydimethylsiloxane(PDMS)acts as both the friction layer and the encapsulation elastomer,thereby boosting the triboelectric output performance *** duplex hydrogel sensor demonstrates comprehensive sensing ability in detecting the whole stimulation process including the dynamic and static *** dynamic stress intensity(10–300 Pa),the action time,and the static variations(increase and decrease)of the pressure can be identified precisely from the dual-channel *** with a signal processing module,an intelligent visible door lamp is achieved for monitoring the entire“contact–hold–release–separationstate of the external stimulation,which shows great application potential for future smart robot e-skin and flexible electronics.