Wang Boran, Gu Yi, Chen Lin, Ji Li, Zhu Hao, Sun Qingqing
State Key Laboratory of ASIC and System, School of Microelectronics, Fudan University, Shanghai 200433, People's Republic of China.
Nanotechnology. 2022 Apr 1;33(25). doi: 10.1088/1361-6528/ac5df5.
Gas sensors have been widely utilized penetrating every aspect of our daily lives, such as medical industry, environmental safety testing, and the food industry. In recent years, two-dimensional (2D) materials have shown promising potential and prominent advantages in gas sensing technology, due to their unique physical and chemical properties. In addition, the ultra-high surface-to-volume ratio and surface activity of the 2D materials with atomic-level thickness enables enhanced absorption and sensitivity. Till now, different gas sensing techniques have been developed to further boost the performance of 2D materials-based gas sensors, such as various surface functionalization and Van der Waals heterojunction formation. In this article, a comprehensive review of advanced gas sensing devices is provided based on 2D materials, focusing on two sensing principles of charge-exchange and surface oxygen ion adsorption. Six types of typical gas sensor devices based on 2D materials are introduced with discussion of latest research progress and future perspectives.
气体传感器已被广泛应用于我们日常生活的方方面面，如医疗行业、环境安全检测和食品工业。近年来，二维（2D）材料因其独特的物理和化学性质，在气体传感技术中显示出了广阔的潜力和显著的优势。此外，具有原子级厚度的二维材料的超高表面积与体积比和表面活性能够增强吸附和灵敏度。到目前为止，已经开发了不同的气体传感技术来进一步提高基于二维材料的气体传感器的性能，如各种表面功能化和范德华异质结的形成。在本文中，对基于二维材料的先进气体传感装置进行了全面综述，重点关注电荷交换和表面氧离子吸附这两种传感原理。介绍了六种基于二维材料的典型气体传感器装置，并讨论了最新的研究进展和未来展望。
