MoS_(2) nanoflowers and PEDOT:PSS nanocomposite enabling wearable dual-mode pressure sensors  

作　　者：WANG FengMing YANG WeiJia MA Ke SHEN GengZhe SU DaoJian LI BaiJun WANG ShuangPeng QIN BoLong ZHANG Chi XIN Yue CAO XiaoBing HE Xin 

机构地区：[1]School of Applied Physics and Materials,Wuyi University,Jiangmen,529020,China [2]Biomaterials R&D Center,Zhuhai Institute of Advanced Technology,Chinese Academy of Sciences,Zhuhai,519003,China [3]Joint Key Laboratory of the Ministry of Education,Institute of Applied Physics and Materials Engineering,University of Macao,Macao,999078,China

出　　处：《Science China(Technological Sciences)》2024年第6期1737-1747,共11页中国科学（技术科学英文版）

基　　金：supported by the Natural Science Foundation of Guangdong Province(Grant No.2021A1515010691);the College Innovation Team Project of Guangdong Province(Grant No.2021KCXTD042);Wuyi University-Hong Kong-Macao Joint Research and Development Fund(Grant No.2019WGALH06)。

摘　　要：A versatile sensing platform employing inorganic MoS_(2) nanoflowers and organic poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate)(PEDOT:PSS)has been investigated to develop the resistive and capacitive force-sensitive devices.The microstructure of the sensing layer heightens the sensitivity and response time of the dual-mode pressure sensors by augmenting electron pathways and inner stress in response to mechanical stimuli.Consequently,the capacitive and resistive sensors exhibit sensitivities of 0.37 and 0.12 kPa^(-1),respectively,while demonstrating a remarkable response time of approximately 100 ms.Furthermore,it is noteworthy that the PEDOT:PSS layer exhibits excellent adhesion to polydimethylsiloxane(PDMS)substrates,which contributes to the development of highly robust force-sensitive sensors capable of enduring more than 10000loading/unloading cycles.The combination of MoS_(2)/PEDOT:PSS layers in these dual-mode sensors has shown promising results in detecting human joint movements and subtle physiological signals.Notably,the sensors have achieved a remarkable precision rate of 98%in identifying target objects.These outcomes underscore the significant potential of these sensors for integration into applications such as electronic skin and human-machine interaction.

关 键 词：MoS_(2)/PEDOT:PSS nanocomposite force-sensitive sensor multi-scaled microstructure physiological signals monitoring object grasping recognition 

分 类 号：TB332[一般工业技术—材料科学与工程] TP212[自动化与计算机技术—检测技术与自动化装置]