摘要
介绍了以SnO2 为主 ,掺入Al2 O3 ,MgO ,InO ,Pd等添加剂的常温CO气敏元件的制备方法。根据其晶体结构特点对气敏机理进行了探讨。论述了传感器的信息传感机制 ,即晶界势垒控制和晶粒大小控制机制同时存在。为获得性能良好的气敏元件 。
Preparation method of CO gas sensor used at room temperature made from SnO 2 with the stuffing of Al 2O 3,MgO,InO,Pd etc is introduced. The crystal structure and mechanism of gas sensor fabricated by sintering process is discussed. Two kinds of control mechanism of information sensing i.e. potential energy among crystal boundaries and crystalline dimension are presented. The best preparation method and stuffing are needed to get gas sensor with good property.
出处
《传感器技术》
CSCD
北大核心
2001年第9期16-17,共2页
Journal of Transducer Technology
关键词
氧化锡
一氧化碳
气敏元件
气敏机理
半导体材料
tin dioxide(SnO 2)
properties of gas sensing
crystal structure
adsorption mechanism
