Self-powered smelling electronic-skin based on the piezo-gas-sensor matrix for real-time monitoring the mining environment

被引：51

作者：

He, Haoxuan ^{[1
]}

Dong, Chuanyi ^{[1
]}

Fu, Yongming ^{[1
]}

Han, Wuxiao ^{[1
]}

Zhao, Tianming ^{[1
]}

Xing, Lili ^{[1
]}

Xue, Xinyu ^{[1
]}

机构：

[1] Northeastern Univ, Coll Sci, Shenyang 110004, Liaoning, Peoples R China

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2018年 / 267卷

基金：

中国国家自然科学基金;

关键词：

Flexible; Self-powered; Gas sensor; Real-time monitoring; Electronic-skin; INGAN QUANTUM-WELLS; NANOWIRE DEVICES; ROOM-TEMPERATURE; SENSING PROPERTIES; WORK FUNCTION; ZNO NANOWIRE; HUMIDITY; OXIDE; NANOGENERATOR; NANOSTRUCTURES;

D O I：

10.1016/j.snb.2018.04.046

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A flexible self-powered smelling electronic-skin (e-skin) for real-time monitoring the mining environment has been fabricated from piezo-gas-sensor matrix of ZnO-based composite nanowires (NWs) via soft photolithography technique. The e-skin includes four sensing units (relative humidity: bare ZnO NWs, ethanol: Pd/ZnO NWs, hydrogen sulfide: CuO/ZnO NWs, and methane: TiO2/ZnO NWs) and can cross-reactively detect relative humidity (RH), ethanol, hydrogen sulfide (H2S) and methane (CH4) in the surrounding gas atmosphere without external electrical power supply or battery. The e-skin attached on human body can be driven by body motions, and the piezoelectric impulse of the piezo-gas-sensior matrix serves as the power supply. The responses of the four sensing units are 87.76% against 90% RH, 59.82% against 1000 ppm ethanol, 79.27% against 500 ppm H2S and -7.50% against 500 ppm CH4, respectively. High response, selectivity and stability have been achieved from the sensing units. The present results could provoke a possible new research direction for promoting the practical application of flexible self -powered smelling electronic-skin in specific occasion. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：392 / 402

页数：11

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