Room temperature non-balanced electric bridge ethanol gas sensor based on a single ZnO microwire

作     者：Yun-Zheng Li Qiu-Ju Feng Bo Shi Chong Gao De-Yu Wang Hong-Wei Liang 李昀铮;冯秋菊;石博;高冲;王德煜;梁红伟

作者机构：School of Physics and Electronic TechnologyLiaoning Normal UniversityDalian 116029China School of MicroelectronicsDalian University of TechnologyDalian 116024China 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2020年第29卷第1期

页      面：463-468页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 080202[工学-机械电子工程] 08[工学] 0817[工学-化学工程与技术] 0802[工学-机械工程] 0703[理学-化学] 070301[理学-无机化学] 

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.61574026 and 11405017) the Liaoning Provincial Natural Science Foundation,China(Grant No.201602453) 

主　　题：ZnO microwire gas sensor room temperature ethanol 

摘      要：In this paper,ultra-long and large-scaled ZnO microwire arrays are grown by the chemical vapor deposition method,and a single ZnO microwire-based non-balanced electric bridge ethanol gas sensor is *** experimental results show that the gas sensor has good repeatability,high response rate,short response,and recovery time at room temperature(25℃).The response rate of the gas sensor exposed to 90-ppm ethanol is about 93%,with a response time and recovery time are 0.3 s and 0.7 s *** a contrast,the traditional resistive gas sensor of a single ZnO microwire shows very small gas response ***,ethanol gas sensor based on non-balanced electric bridge can obviously enhance gas sensing characteristics,which provides a feasible method of developing the high performance ZnO-based gas sensor.