石墨烯量子点掺杂的ZnO纳米片的气敏性能研究

Preparation and properties of graphene quantum dots doped ZnO nanosheets

制备性能优异的气敏材料对于设计高性能气体传感器具有重要意义。该文采用水热法制备了ZnO纳米片,利用石墨烯量子点(GQDs)对ZnO纳米片进行了掺杂,研究了GQDs掺杂量对材料气敏性能的影响。研究结果表明:与未掺杂ZnO纳米材料相比,复合材料气敏元件具有独特的响应和恢复特性,更有利于其实际应用。

The preparation of high-quality gas sensing materials is of great significance for the design of high-performance gas sensors.In this paper,ZnO nanosheets were prepared by hydrothermal method.ZnO nanosheets were doped with graphene quantum dots(GQDs).The effect of the doping amount of GQDs on the gas sensing properties of the materials was studied.The results show that,compared with undoped ZnO nano materials,the composite gas sensor has unique response and recovery characteristics,which is more conducive to its practical application.