| 自组装型SnO_2纳米线超低浓度H_2传感器的研制 |
| |
| 引用本文： | 王冰.自组装型SnO_2纳米线超低浓度H_2传感器的研制[J].电子元件与材料,2008,27(6):48-50. |
| |
| 作者姓名： | 王冰 |
| |
| 作者单位： | 深圳大学,电子科学与技术学院,深圳市微纳光子信息技术实验室,广东,深圳,518060 |
| |
| 基金项目： | 深圳大学校科研和教改项目 |
| |
| 摘 要： | 采用FESEM及气敏传感器测试系统,研究了用自组装方式制备的SnO2纳米线气敏传感器的氢敏特性。结果表明:在工作温度为200℃时,对于超低浓度(2~8)×10–6]的氢气具有0.58~1.00的探测灵敏度及3 s的响应时间和10 s的恢复时间。继而从气敏机制、自组装制备方式、SnO2纳米线的优良的比表面特性及其尺度(30~40 nm)低于德拜长度(43 nm)等角度,解释了此传感器对超低浓度氢气具有良好气敏特性的原因。
|
| 关 键 词： | 电子技术 气敏传感器 纳米线 气敏特性 |
| 文章编号： | 1001-2028(2008)06-0048-03 |
| 修稿时间： | 2008年4月28日 |
Development of the self-assembled SnO_2 nanowires H_2 sensor with super low concentration |
| |
| WANG Bing.Development of the self-assembled SnO_2 nanowires H_2 sensor with super low concentration[J].Electronic Components & Materials,2008,27(6):48-50. |
| |
| Authors: | WANG Bing |
| |
| Affiliation: | WANG Bing(Shenzhen Key Lab of Micro-nano Photonic Information Technology,School of Electronic Science , Technology,Shenzhen University,Shenzhen 518060,Guangdong Province,China) |
| |
| Abstract: | Hydrogen sensitive property of the SnO2 nanowires gas sensor fabricated by self-assembled method was investigated.The results show that the sensor has sensitivity of 0.58~1.00 to the super low hydrogen concentration of(2~8)×10–6,the response time is 3 s and the recovery time is 10 s at 200 ℃ of working temperature.The reasons of good gas sensitive characteristics for SnO2 nanowire H2 sensor with super low concentration were attributed to the gas sensitive mechanism,and self-assembled fabrication method,the specific surface characteristics and 30~40 nm of size for SnO2 nanowires.This size is less than 43 nm of Debye lgneth. |
| |
| Keywords: | electron technology gas sensor nanowires gas sensitive characteristics |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
