四针状纳米氧化锌的乙醇气敏性能的研究  

Ethanol Sensing Characteristics of Tetrapod-like ZnO Gas Sensors

作　　者：王晶晶[1] 郭太良[1] 

机构地区：[1]福州大学电子科学及应用物理系,福建福州350002

出　　处：《仪表技术与传感器》2008年第1期8-9,71,共3页Instrument Technique and Sensor

基　　金：国家"八六三"计划平板显示重大专项基金(2005AA303G10);福建省科技重大专项基金(2004HZ01-2);福建省自然科学基金重点项目(A0420001)

摘　　要：采用高温气相氧化法,以锌粉为原料,制备了四针状纳米氧化锌。主要对四针状纳米氧化锌的酒精气敏特性进行了研究,测试在不同浓度的酒精气氛下,传感器的灵敏度和响应特性,结果表明:四针状纳米氧化锌对酒精的灵敏度较高,特别适合于检测低浓度的酒精,同时对酒精的响应、恢复时间都很短。Tetrapod-like ZnO was synthesized by the thermal evaporation of Zn powders. Tetrapod ZnO gas sensors were fabricated by conventional method. The ethanol sensing characteristics of the sensors were investigated carefully, included the sensitivity and response-recovery. The sensor exhibited high sensitivity and fast response-recovery to ethanol. The result demonstrats the potential application of tetrapod-like ZnO for fabricating highly sensitive gas sensors to detect ethanol with low concentrations.

关 键 词：四针状纳米氧化锌 气体传感器 灵敏度 响应时间 恢复时间 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TN304.2[自动化与计算机技术—控制科学与工程]