High Performance Ultraviolet Photodetector Fabricated with ZnO Nanoparticles-graphene Hybrid Structures  

基于氧化锌纳米颗粒-石墨烯异质结构的高性能紫外光探测器

作　　者：刘金养[1] 于欣欣[2] 张光辉[1] 吴昱昆[1] 张琨[3] 潘楠[3] 王晓平[1,3] 

机构地区：[1]中国科学技术大学物理系,合肥230026 [2]安徽大学物理与材料科学学院,合肥230039 [3]中国科学技术大学合肥微尺度物质科学国家实验室筹,合肥230026

出　　处：《Chinese Journal of Chemical Physics》2013年第2期225-230,I0004,共7页化学物理学报（英文）

基　　金：This work is supported by MOST of China （No.2011CB921403）, the Chinese Academy of Science, and the National Natural Science Foundation of China （No.10874165, No.90921013, No.11074231, and No. 11004179）.

摘　　要：Ultraviolet （UV） photodetector constructed by ZnO material has attracted intense research and commercial interest. However, its photoresistivity and photoresonse are still unsatisfied. Herein, we report a novel method to assemble ZnO nanoparticles （NPs） onto the reduced graphite oxide （RGO） sheet by simple hydrothermal process without any surfactant. It is found that the high-quality crystallized ZnO NPs with the average diameter of 5 nm are well dispersed on the RGO surface, and the density of ZnO NPs can be readily controlled by the concentration of the precursor. The photodetector fabricated with this ZnO NPs- RGO hybrid structure demonstrates an excellent photoresponse for the UV irradiation. The results make this hybrid especially suitable as a novel material for the design and fabrication of high performance UV photodector.

关 键 词：ZnO nanoparticle Reduced graphite oxide Hybrid structure UV photodector 

分 类 号：O6[理学—化学]