期刊
SENSORS
卷 22, 期 1, 页码 -出版社
MDPI
DOI: 10.3390/s22010061
关键词
gas sensor; core-shell sensors; self-heated sensors; flexible sensors; irradiation sensors; sensing mechanism
This review presents the cutting-edge research on chemiresistive gas sensors in Korea, specifically focusing on the research activities of Professors Sang Sub Kim and Hyoun Woo Kim. The review discusses advances in synthesis techniques and strategies to enhance gas-sensing performances of different nanomaterials. It also highlights important achievements, such as optimizing shell thickness in core-shell gas sensors and the design of selective and highly flexible gas sensors-based on WS2 nanosheets.
This review presents the results of cutting-edge research on chemiresistive gas sensors in Korea with a focus on the research activities of the laboratories of Professors Sang Sub Kim and Hyoun Woo Kim. The advances in the synthesis techniques and various strategies to enhance the gas-sensing performances of metal-oxide-, sulfide-, and polymer-based nanomaterials are described. In particular, the gas-sensing characteristics of different types of sensors reported in recent years, including core-shell, self-heated, irradiated, flexible, Si-based, glass, and metal-organic framework sensors, have been reviewed. The most crucial achievements include the optimization of shell thickness in core-shell gas sensors, decrease in applied voltage in self-heated gas sensors to less than 5 V, optimization of irradiation dose to achieve the highest response to gases, and the design of selective and highly flexible gas sensors-based WS2 nanosheets. The underlying sensing mechanisms are discussed in detail. In summary, this review provides an overview of the chemiresistive gas-sensing research activities led by the corresponding authors of this manuscript.
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