{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,22]],"date-time":"2026-07-22T05:02:32Z","timestamp":1784696552742,"version":"3.55.0"},"reference-count":86,"publisher":"MDPI AG","issue":"18","license":[{"start":{"date-parts":[[2024,9,23]],"date-time":"2024-09-23T00:00:00Z","timestamp":1727049600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Natural Science Foundation of Chongqing","award":["cstc2020jscx\u2013dxwtBX0052"],"award-info":[{"award-number":["cstc2020jscx\u2013dxwtBX0052"]}]},{"name":"Natural Science Foundation of Chongqing","award":["CSTB2022NSCQ\u2013LZX0075"],"award-info":[{"award-number":["CSTB2022NSCQ\u2013LZX0075"]}]},{"name":"Natural Science Foundation of Chongqing","award":["2021CDJXDJH006"],"award-info":[{"award-number":["2021CDJXDJH006"]}]},{"name":"Natural Science Foundation of Chongqing","award":["2022CDJJMRH\u2013006"],"award-info":[{"award-number":["2022CDJJMRH\u2013006"]}]},{"name":"Natural Science Foundation of Chongqing","award":["2023CDJXY\u2013040"],"award-info":[{"award-number":["2023CDJXY\u2013040"]}]},{"name":"Fundamental Research Funds for Central Universities of China","award":["cstc2020jscx\u2013dxwtBX0052"],"award-info":[{"award-number":["cstc2020jscx\u2013dxwtBX0052"]}]},{"name":"Fundamental Research Funds for Central Universities of China","award":["CSTB2022NSCQ\u2013LZX0075"],"award-info":[{"award-number":["CSTB2022NSCQ\u2013LZX0075"]}]},{"name":"Fundamental Research Funds for Central Universities of China","award":["2021CDJXDJH006"],"award-info":[{"award-number":["2021CDJXDJH006"]}]},{"name":"Fundamental Research Funds for Central Universities of China","award":["2022CDJJMRH\u2013006"],"award-info":[{"award-number":["2022CDJJMRH\u2013006"]}]},{"name":"Fundamental Research Funds for Central Universities of China","award":["2023CDJXY\u2013040"],"award-info":[{"award-number":["2023CDJXY\u2013040"]}]},{"name":"Key Laboratory of Gun Launch and Control Technology, NORINCO","award":["cstc2020jscx\u2013dxwtBX0052"],"award-info":[{"award-number":["cstc2020jscx\u2013dxwtBX0052"]}]},{"name":"Key Laboratory of Gun Launch and Control Technology, NORINCO","award":["CSTB2022NSCQ\u2013LZX0075"],"award-info":[{"award-number":["CSTB2022NSCQ\u2013LZX0075"]}]},{"name":"Key Laboratory of Gun Launch and Control Technology, NORINCO","award":["2021CDJXDJH006"],"award-info":[{"award-number":["2021CDJXDJH006"]}]},{"name":"Key Laboratory of Gun Launch and Control Technology, NORINCO","award":["2022CDJJMRH\u2013006"],"award-info":[{"award-number":["2022CDJJMRH\u2013006"]}]},{"name":"Key Laboratory of Gun Launch and Control Technology, NORINCO","award":["2023CDJXY\u2013040"],"award-info":[{"award-number":["2023CDJXY\u2013040"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Excellent stability, low cost, high response, and sensitivity of indium oxide (In2O3), a metal oxide semiconductor, have been verified in the field of gas sensing. Conventional In2O3 gas sensors employ simple and easy\u2013to\u2013manufacture resistive components as transducers. However, the swift advancement of the Internet of Things has raised higher requirements for gas sensors based on metal oxides, primarily including lowering operating temperatures, improving selectivity, and realizing integrability. In response to these three main concerns, field\u2013effect transistor (FET) gas sensors have garnered growing interest over the past decade. When compared with other metal oxide semiconductors, In2O3 exhibits greater carrier concentration and mobility. The property is advantageous for manufacturing FETs with exceptional electrical performance, provided that the off\u2013state current is controlled at a sufficiently low level. This review presents the significant progress made in In2O3 FET gas sensors during the last ten years, covering typical device designs, gas sensing performance indicators, optimization techniques, and strategies for the future development based on In2O3 FET gas sensors.<\/jats:p>","DOI":"10.3390\/s24186150","type":"journal-article","created":{"date-parts":[[2024,9,24]],"date-time":"2024-09-24T08:56:06Z","timestamp":1727168166000},"page":"6150","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["Gas Sensing Properties of Indium\u2013Oxide\u2013Based Field\u2013Effect Transistor: A Review"],"prefix":"10.3390","volume":"24","author":[{"given":"Chengyao","family":"Liang","sequence":"first","affiliation":[{"name":"State Key Laboratory of Coal Mine Disaster Dynamic and Control, Chongqing University, Chongqing 400044, China"},{"name":"Key Laboratory of Optoelectronic Technology and Systems of the Education Ministry of China, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhongyu","family":"Cao","sequence":"additional","affiliation":[{"name":"Department of Ultrasound, The Affiliated Hospital of Southwest Jiaotong University, The Third People\u2032s Hospital of Chengdu, Chengdu 600031, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiongyue","family":"Hao","sequence":"additional","affiliation":[{"name":"Key Laboratory of Optoelectronic Technology and Systems of the Education Ministry of China, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shili","family":"Zhao","sequence":"additional","affiliation":[{"name":"Key Laboratory of Optoelectronic Technology and Systems of the Education Ministry of China, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuanting","family":"Yu","sequence":"additional","affiliation":[{"name":"Key Laboratory of Optoelectronic Technology and Systems of the Education Ministry of China, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yingchun","family":"Dong","sequence":"additional","affiliation":[{"name":"Key Laboratory of Optoelectronic Technology and Systems of the Education Ministry of China, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hangyu","family":"Liu","sequence":"additional","affiliation":[{"name":"Key Laboratory of Optoelectronic Technology and Systems of the Education Ministry of China, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chun","family":"Huang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Optoelectronic Technology and Systems of the Education Ministry of China, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chao","family":"Gao","sequence":"additional","affiliation":[{"name":"Key Laboratory of Optoelectronic Technology and Systems of the Education Ministry of China, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2925-3912","authenticated-orcid":false,"given":"Yong","family":"Zhou","sequence":"additional","affiliation":[{"name":"Key Laboratory of Optoelectronic Technology and Systems of the Education Ministry of China, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5340-4952","authenticated-orcid":false,"given":"Yong","family":"He","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Coal Mine Disaster Dynamic and Control, Chongqing University, Chongqing 400044, China"},{"name":"Key Laboratory of Optoelectronic Technology and Systems of the Education Ministry of China, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,9,23]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"559","DOI":"10.1007\/s10853-022-08072-0","article-title":"Gas sensors and factors influencing sensing mechanism with a special focus on MOS sensors","volume":"58","author":"Nadargi","year":"2023","journal-title":"J. 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