ZnO nanorods based ammonia gas sensors with interdigitized electrodes

摘要：

　　The ZnO nanorods-based ammonia (NH3) gas sensors with different electrode spacing are fabricated and studied.Experimentally,the hexagonal ZnO nanorods were prepared by a hydrothermal method.The diameter and length of ZnO nanorods were about 179±2,1806±5 nm,respectively.By shrinking the electrode spacing,the sensor response of studied device is improved and the sensor response is enhanced more than ten times in magnitude.The improved NH3 sensing ability caused by shrink electrode spacing is attributed to the presence of more grain boundaries and depletion layers.Therefore,the studied device with the shrink of electrode spacing provides a promise for high-performance ammonia sensing applications.

关键词： ZnO nanorods potential barrier NH3 electrode spacing

作者: Tai-You Chen Jian-Sheng Wu Chi-Shiang Hsu Po-Cheng Chou Huey-lng Chen Kun-Wei Lin Wen-Chau Liu

作者单位: Institute of Microelectronics,Department of Electrical Engineering,National Cheng-Kung University,1 Department of Chemical Engineering,National Cheng-Kung University,1 University Road,Tainan,TAIWAN 70 Department of computer science and information engineering,Chaoyang University of Technology,Taichun

会议类型: 国际会议

会议名称: the international conference on Frontier of Nanoscience and Technology (2011纳米科学与技术国际会议(ICFNST 2011))

会议地点: 大理

会议语种:英文

页码: 155-159

在线出版日期: 2011-08-18（万方平台首次上网日期，不代表论文的发表时间）