Recent advances in ethanol gas sensors based on metal oxide semiconductor heterojunctions

被引:139
作者
Gai, Ling-Yun [1 ]
Lai, Run-Ping [2 ]
Dong, Xian-Hui [3 ,4 ]
Wu, Xing [5 ]
Luan, Qiao-Tong [4 ]
Wang, Jue [4 ]
Lin, Hao-Feng [4 ]
Ding, Wen-Hao [4 ]
Wu, Guang-Lei [3 ]
Xie, Wan-Feng [3 ,4 ]
机构
[1] Qingdao Agr Univ, Big Data & Network Management Ctr, Qingdao 266109, Peoples R China
[2] China Univ Min & Technol Beijing, Sch Mech Elect & Informat Engn, Beijing 10083, Peoples R China
[3] Qingdao Univ, Sch Mat Sci & Engn, State Key Lab Biofibers & Ecotext, Qingdao 266071, Peoples R China
[4] Qingdao Univ, Sch Elect & Informat, State Key Lab Biofibers & Ecotext, Qingdao 266071, Peoples R China
[5] East China Normal Univ, Sch Commun & Elect Engn, Shanghai Key Lab Multidimens Informat Proc, Shanghai 200241, Peoples R China
基金
中国国家自然科学基金;
关键词
Metal oxides; Heterojunction; Chemiresistor; Ethanol sensor; Synergistic behavior; VOLATILE ORGANIC-COMPOUNDS; REDUCED GRAPHENE OXIDE; SENSING PROPERTIES; HYDROTHERMAL SYNTHESIS; HIGH SELECTIVITY; ZNO; FABRICATION; PERFORMANCE; NANOSHEETS; HETEROSTRUCTURES;
D O I
10.1007/s12598-021-01937-4
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Metal oxide semiconductor heterojunctions (MOSHs) can enhance the performance of ethanol gas sensors substantially. Ethanol gas sensors based on MOSHs are cost-effective and have excellent sensing response, good selectivity, fast response and recovery, long-term stability or repeatability, a low operating temperature, a facile fabrication process, and versatile applications. This paper reviews the recent advances in gas sensors that are based on MOSHs and the advantages of using them to detect ethanol gas. According to the literature, compared with ethanol gas sensors that use single-component sensing materials, the MOSHs exhibit superior performance due to the synergy between the different components, which can amplify the reception and transduction components of the sensor signals. To the best of our knowledge, heterojunctions can be grouped into four main categories as metal oxide/metal oxide, metal oxide/metal sulfide, metal oxide/noble metal, and metal oxide/other materials, including rare-earth metals, g-C3N4, and graphene, heterojunctions. The future trends and challenges that would be faced in the development of ethanol gas sensors based on MOSHs are discussed in detail. Finally, critical ideas and thinking regarding the future progress of MOSH-based gas sensors are presented.
引用
收藏
页码:1818 / 1842
页数:25
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