Facile Preparation of Hybrid Structure Based on Mesodome and Micropillar Arrays as Flexible Electronic Skin with Tunable Sensitivity and Detection Range

Ji, Bing1; Mao, Yongyun1,3; Zhou, Qian1; Zhou, Jianhe4; Chen, Ge1; Gao, Yibo5; Tian, Yanqing3; Wen, Weijia5; Zhou, Bingpu1,2

2019-08-07

10.1021/acsami.9b08419

ACS Applied Materials & Interfaces   影响因子和分区

1944-8244

1944-8252

The development of flexible pressure sensors has attracted increasing research interest for potential applications such as wearable electronic skins and human healthcare monitoring. Herein, we demonstrated a piezoresistive pressure sensor based on AgNWs-coated hybrid architecture consisting of mesoscaled dome and microscaled pillar arrays. We experimentally showed that the key three-dimensional component for a pressure sensor can be conveniently acquired using a vacuum application during the spincoating process instead of a sophisticated and expensive approach. The demonstrated hybrid structure exhibits dramatically improved sensing capability when compared with the conventional one-fold dome-based counterpart in terms of the sensitivity and detectable pressure range. The optimized sensing performance, by integrating D1000 dome and D50P100 MPA, reaches a superior sensitivity of 128.29 kPa(-1) (0-200 Pa), 1.28 kPa(-1) (0.2-10 kPa), and 0.26 kPa(-1) (10-80 kPa) and a detection limit of 2.5 Pa with excellent durability. As a proof-of-concept, the pressure sensor based on the hybrid configuration was demonstrated as a versatile platform to accurately monitor different kinds of physical signals or pressure sources, e.g., wrist pulse, voice vibration, finger bending/touching, gas flow, as well as address spatial loading. We believe that the proposed architecture and developed methodology can be promising for future applications including flexible electronic devices, artificial skins, and interactive robotics.

electronic skin pressure sensor hybrid structure silver nanowire polydimethylsiloxane

SCI ; EI

英语

其他

Research & Development Administration Office at University of Macau[MYRG2017-00089-FST] ; Research & Development Administration Office at University of Macau[MYRG2018-00063-IAPME]

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000480498600063

AMER CHEMICAL SOC

20193307322560

Domes ; Flow of gases ; Polydimethylsiloxane ; Pressure sensors ; Silicones ; Vacuum applications

Structural Members and Shapes:408.2 ; Gas Dynamics:631.1.2 ; Vacuum Applications:633.1 ; Organic Polymers:815.1.1 ; Pressure Measuring Instruments:944.3

Web of Science

1.Univ Macau, Inst Appl Phys & Mat Engn, Minist Educ, Joint Key Lab, Ave Univ, Taipa 999078, Macau, Peoples R China
2.Univ Macau, Fac Sci & Technol, Dept Chem & Phys, Ave Univ, Taipa 999078, Macau, Peoples R China
3.Southern Univ Sci & Technol, Dept Mat Sci & Engn, 1088 Xueyuan Rd, Shenzhen 518055, Guangdong, Peoples R China
4.Kanghua Hosp, Spinal Joint Surg, Dongguan 523000, Guangdong, Peoples R China
5.Hong Kong Univ Sci & Technol, Dept Phys, Kowloon, Clear Water Bay, Hong Kong 999077, Peoples R China

Ji, Bing,Mao, Yongyun,Zhou, Qian,et al. Facile Preparation of Hybrid Structure Based on Mesodome and Micropillar Arrays as Flexible Electronic Skin with Tunable Sensitivity and Detection Range[J]. ACS Applied Materials & Interfaces,2019,11(31):28060-28071.

Ji, Bing.,Mao, Yongyun.,Zhou, Qian.,Zhou, Jianhe.,Chen, Ge.,...&Zhou, Bingpu.(2019).Facile Preparation of Hybrid Structure Based on Mesodome and Micropillar Arrays as Flexible Electronic Skin with Tunable Sensitivity and Detection Range.ACS Applied Materials & Interfaces,11(31),28060-28071.

Ji, Bing,et al."Facile Preparation of Hybrid Structure Based on Mesodome and Micropillar Arrays as Flexible Electronic Skin with Tunable Sensitivity and Detection Range".ACS Applied Materials & Interfaces 11.31(2019):28060-28071.