Semiconductor metal oxide compounds based gas sensors： A literature review

• Published in: Frontiers of materials science Vol. 9; no. 1; pp. 14 - 37
• Main Authors: PATIL, Sunil Jagannath, PATIL, Arun Vithal, DIGHAVKAR, Chandrakant Govindrao, THAKARE, Kashinath Shravan, BORASE, Ratan Yadav, NANDRE, Sachin Jayaram, DESHPANDE, Nishad Gopal, AHIRE, Rajendra Ramdas
• Format: Journal Article
• Language: English
• Published: Heidelberg Higher Education Press 01.03.2015
• Subjects: air pollutant; Chemistry and Materials Science; gas response; gas sensor; Materials Science; Review Article; semiconductor metal oxide (SMO); sensitivity; 半导体金属氧化物; 安森美半导体; 挥发性化合物; 文献综述; 有害气体; 气体传感器; 液化石油气; 空气污染物; gas sensor; semiconductor metal oxide (SMO); sensitivity; gas response; air pollutant
• ISSN: 2095-025X; 2095-0268
• DOI: 10.1007/s11706-015-0279-7

This paper gives a statistical view about important contributions and advances on semiconductor metal oxide （SMO） compounds based gas sensors developed to detect the air pollutants such as liquefied petroleum gas （LPG）, H2S, NH3, CO2, acetone, ethanol, other volatile compounds and hazardous gases. Moreover, it is revealed that the alloy/composite made up of SMO gas sensors show better gas response than their counterpart single component gas sensors, i.e., they are found to enhance the 4S characteristics namely speed, sensitivity, selectivity and stability. Improvement of such types of sensors used for detection of various air pollutants, which are reported in last two decades, is highlighted herein.