基于锑掺杂的高灵敏度纳米SnO_2气体传感器  

High-Sensitivity Nano-SnO_2 Gas Sensor Based on Sb-doped Materials

作　　者：高晓平[1] 刘东妮[1] 王运福[1] 韩根亮[1] 刘国汉[1] 

机构地区：[1]甘肃省科学院传感技术研究所,甘肃兰州730000

出　　处：《仪表技术与传感器》2009年第B11期148-149,共2页Instrument Technique and Sensor

基　　金：甘肃省中青年科技基金(3ZS041-A25-017);甘肃省科学技术厅技术与专项计划(0709TC YA046)资助项目

摘　　要：采用非水溶剂溶胶-凝胶法制备了粒径为10 nm左右的SnO_2基纳米气敏材料,制作成烧结型气体传感器,通过锑的掺杂来提高纳米SnO_2气体传感器的灵敏度和选择性,结果表明,锑的掺杂百分比为0.045%时,传感器对酒精的灵敏度最大,并对酒精显示出良好的选择性和响应恢复特性。Nano Sb-doped SnO2powders with 10 nm diameters were obtained by sol-gel method with non-water solvent. Sin- tered-type gas sensors made of the as - synthesized SnO2 nanopowders were fabricated to detect sensitivity and selectivity for different combustible gas. The results indicate that the obtained gas sensors show a higher sensitivity and a better selectivity to alcohol when the Sb-doped concentration was 0. 045% molar percentage.

关 键 词：纳米SNO2 锑掺杂 高灵敏度 选择性 

分 类 号：TP721[自动化与计算机技术—检测技术与自动化装置]