Strategies for improving the sensing performance of In2O3-based gas sensors for ethanol detection

被引：46
作者：
Shi, Y. [1 ]
Li, X. [1 ]
Sun, X. F. [1 ]
Shao, X. [1 ]
Wang, H. Y. [1 ]
机构：
[1] Nanjing Inst Technol, Sch Mech Engn, Nanjing 211167, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2023年 / 963卷
基金：
中国国家自然科学基金;
关键词：
Gas sensors; Nanostructures; Heterojunction; CONTROLLABLE SYNTHESIS; IN2O3; NANORODS; NANOFIBERS; NANOPARTICLES; TEMPERATURE; SELECTIVITY; NANOTUBES; AU; SEMICONDUCTOR; NANOMATERIALS;
D O I：
10.1016/j.jallcom.2023.171190
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Due to its explosive, colorless and volatile nature, detection of ethanol is critical in daily life, industrial production and medical treatment. Metal oxide semiconductors (MOS) gas sensors have caught the attention of researchers due to their low cost and convenient detection. Indium oxide (In2O3) is a typical wide band gap ntype semiconductor metal oxide widely used in detecting H2S, NO2, H2, and ethanol. This paper summarizes the strategies used in the last decade to improve the performance of gas sensors based on In2O3 sensitive materials for ethanol detection. These strategies include modifying the morphology of indium oxide sensitive materials, doping and loading, building heterojunctions, and using composite new materials. In addition, the sensing mechanism for ethanol detection by gas sensors is presented.
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页数：13
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