半导体
材料科学
纳米技术
纳米结构
氧化物
半导体纳米结构
光电子学
冶金
作者
Tingting Lin,Xin Lv,Shuang Li,Wang Qingji
出处
期刊:Sensors
[MDPI AG]
日期:2017-11-30
卷期号:17 (12): 2779-2779
被引量:74
摘要
Semiconductor oxide chemoresistive gas sensors are widely used for detecting deleterious gases due to low cost, simple preparation, rapid response and high sensitivity. The performance of gas sensor is greatly affected by the morphology of the semiconductor oxide. There are many semiconductor oxide morphologies, including zero-dimensional, one-dimensional, two-dimensional and three-dimensional ones. The semiconductor oxides with different morphologies significantly enhance the gas-sensing performance. Among the various morphologies, hollow nanostructures and core-shell nanostructures are always the focus of research in the field of gas sensors due to their distinctive structural characteristics and superior performance. Herein the morphologies of semiconductor oxides and their gas-sensing properties are reviewed. This review also proposes a potential strategy for the enhancement of gas-sensing performance in the future.
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