基于半导体纳米SnO<sub>2</sub>构建的气敏传感器的应用研究进展

基于半导体纳米SnO₂构建的气敏传感器的应用研究进展

摘要: SnO₂是传统的气敏材料,由于其具有间隙锡离子和氧空位的特性,使得气体更容易吸附在材料表面,从而显示出更好的气敏性质. 通过把SnO₂进行贵金属附载掺杂和多种气敏性半导体氧化物的复合,探讨了一系列性能良好的气敏传感器,阐述了SnO₂气敏传感的最新进展.

Abstract: Tin dioxide is a traditional gas sensitive material. Owing to the gap of tin ion and the vacancy of oxygen, the detecting gas can be adsorbed on the surface of the material, which can demonstrate good gas sensing properties. It is a good way to discuss a series of gas sensors with good properties by means of noble metal-load and synthesis of composite oxides. In this article, the new development of tin dioxide gas sensor from the two aspects of gas sensor mechanism and development of materials are mainly elaborated.