Zhang Jian, Liu Lei, Yang Yan, Huang Qingwu, Li Delong, Zeng Dawen
State Key Laboratory of Materials Processing and Die Mould Technology, Huazhong University of Science and Technology (HUST), No. 1037, Luoyu Road, Wuhan 430074, China.
Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China.
Phys Chem Chem Phys. 2021 Jul 28;23(29):15420-15439. doi: 10.1039/d1cp01890f.
Two-dimensional (2D) materials have shown great potential for gas sensing applications due to their large specific surface areas and strong surface activities. In addition to the commonly reported chemiresistive-type gas sensors, field-effect transistor (FET)-type gas sensors have attracted increased attention due to their miniaturized size, low power consumption, and good compatibility with CMOS technology. In this review, we aim to discuss the recent developments in chemiresistive- and FET-type gas sensors based on 2D materials, including graphene, transition metal dichalcogenides, MXenes, black phosphorene, and other layered materials. Firstly, the device structure and the corresponding fabrication process of the two types of sensors are given, and then the advantages and disadvantages are also discussed. Secondly, the effects of intrinsic and extrinsic factors on the sensing performance of 2D material-based chemiresistive and FET-type gas sensors are also detailed. Subsequently, the current gas-sensing applications of 2D material-based chemiresistive- and FET-type gas sensors are systematically presented. Finally, the future prospects of 2D materials in chemiresistive- and FET-type gas sensing applications as well as the current existing problems are pointed out, which could be helpful for the development of 2D material-based gas sensors with better sensing performance to meet the requirements for practical application.
二维（2D）材料因其大的比表面积和强的表面活性，在气体传感应用中展现出巨大潜力。除了常见的化学电阻型气体传感器外，场效应晶体管（FET）型气体传感器因其尺寸小型化、低功耗以及与CMOS技术的良好兼容性而受到越来越多的关注。在本综述中，我们旨在讨论基于二维材料（包括石墨烯、过渡金属二硫属化物、MXenes、黑磷烯和其他层状材料）的化学电阻型和FET型气体传感器的最新进展。首先，给出了这两种类型传感器的器件结构和相应的制造工艺，然后讨论了它们的优缺点。其次，还详细阐述了本征和非本征因素对基于二维材料的化学电阻型和FET型气体传感器传感性能的影响。随后，系统地介绍了基于二维材料的化学电阻型和FET型气体传感器目前的气体传感应用。最后，指出了二维材料在化学电阻型和FET型气体传感应用中的未来前景以及当前存在的问题，这可能有助于开发具有更好传感性能的基于二维材料的气体传感器，以满足实际应用的要求。
