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Manuscript Submission Deadline 12 January 2024

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Chemiresistive gas sensors have played an important role in modern society with wide applications in many fields, including real-time environmental monitoring, exhaled breath diagnosis, food freshness analysis, and public security affairs. The development of advanced gas sensors is strongly dependent on the ...

Chemiresistive gas sensors have played an important role in modern society with wide applications in many fields, including real-time environmental monitoring, exhaled breath diagnosis, food freshness analysis, and public security affairs. The development of advanced gas sensors is strongly dependent on the sensing materials. Currently, metal oxides are widely used in commercial chemiresistive gas sensors. However, the sensors based on metal oxides require to work at high temperatures owing to their low conductivity. Two-dimensional semiconductive materials-based gas sensors are promising candidates to work at room temperature. However, they still suffer from the issues of long response/recovery time. Exploring new sensing materials with high performance is therefore highly desired to satisfy the widespread applications of gas sensors.

In view of the rapid development in the area, we propose a Research Topic focused on the recent development of chemiresistive gas sensors. The topics cover various advanced nanomaterials, which could address the problems of high working temperatures, long response/recovery time, and unclear sensing mechanisms. Research on novel sensing principles or functions in the nanoscale is also encouraged. Both original research findings and review articles are welcomed. Potential topics include, but are not limited to:
• Nanomaterials with novel gas-sensing properties;
• Nanomaterial hybrids/heterostructures with enhanced sensing properties (selectivity, operating temperature, sensitivity, frequency response, linearity range, stability, accuracy, and so on);
• Theoretical and experimental understanding of the relationship between the structure of nanomaterials and sensing performance;
• Theory, modeling, and numerical simulation of nanomaterials and sensing application;
• Nanomaterials could be used in multifunctional gas sensors.

Keywords: Chemiresistive gas sensors, semiconductive materials, high sensing response, low working temperature, rapid response


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