title: Broad-band three dimensional nanocave ZnO thin film photodetectors enhanced by Au surface plasmon resonance.
abstract: ZnO semiconductor films with periodic 3D nanocave patterns were fabricated by the thermal nanoimprinting technology, which is promising for photodetectors with enhanced light harvesting capability. The Au nanoparticles were further introduced into the ZnO films, which boosts the UV response of ZnO films and extends the photodetection to visible regions. The best UV photoresponse was detected on the 3D nanocave ZnO-Au hybrid films, attributing to the light trapping mechanism of 3D periodic structures and the driving force of the Schottky barrier at the ZnO/Au interface, while the high visible photoresponse of ZnO-Au hybrid films mainly results from the hot electron generation and injection process over the Schottky junctions mediated by Au surface plasmon resonances. The work provides a cost-effective pathway to develop large-scale periodic 3D nanopatterned thin film photodetectors and is promising for the future deployment of high performance optoelectronic devices.
authors.affiliation: Key Laboratory of Soft Chemistry and Functional Materials of Education Ministry, Nanjing University of Science and Technology, Nanjing 210094, China.
authors.forename: Mengwei
authors.initials: M
authors.lastname: Sun
authors.affiliation: Shanghai Advanced Research Institute, Chinese Academy of Sciences, 99 Haike Road, Zhangjiang Hi-Tech Park, Pudong, Shanghai 201210, China. yinm@sari.ac.cn lidd@sari.ac.cn.
authors.forename: Zhen
authors.initials: Z
authors.lastname: Xu
authors.affiliation: Shanghai Advanced Research Institute, Chinese Academy of Sciences, 99 Haike Road, Zhangjiang Hi-Tech Park, Pudong, Shanghai 201210, China. yinm@sari.ac.cn lidd@sari.ac.cn.
authors.forename: Min
authors.initials: M
authors.lastname: Yin
authors.affiliation: Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, SARChina.
authors.forename: Qingfeng
authors.initials: Q
authors.lastname: Lin
authors.affiliation: Shanghai Advanced Research Institute, Chinese Academy of Sciences, 99 Haike Road, Zhangjiang Hi-Tech Park, Pudong, Shanghai 201210, China. yinm@sari.ac.cn lidd@sari.ac.cn.
authors.forename: Linfeng
authors.initials: L
authors.lastname: Lu
authors.affiliation: Shanghai Advanced Research Institute, Chinese Academy of Sciences, 99 Haike Road, Zhangjiang Hi-Tech Park, Pudong, Shanghai 201210, China. yinm@sari.ac.cn lidd@sari.ac.cn.
authors.forename: Xinzhong
authors.initials: X
authors.lastname: Xue
authors.affiliation: Key Laboratory of Soft Chemistry and Functional Materials of Education Ministry, Nanjing University of Science and Technology, Nanjing 210094, China.
authors.forename: Xufei
authors.initials: X
authors.lastname: Zhu
authors.affiliation: Key Lab of Advanced Transducers and Intelligent Control System of Ministry of Education, College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan 030024, China.
authors.forename: Yanxia
authors.initials: Y
authors.lastname: Cui
authors.affiliation: Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, SARChina.
authors.forename: Zhiyong
authors.initials: Z
authors.lastname: Fan
authors.affiliation: Shanghai Advanced Research Institute, Chinese Academy of Sciences, 99 Haike Road, Zhangjiang Hi-Tech Park, Pudong, Shanghai 201210, China. yinm@sari.ac.cn lidd@sari.ac.cn.
authors.forename: Yiling
authors.initials: Y
authors.lastname: Ding
authors.affiliation: Shanghai Advanced Research Institute, Chinese Academy of Sciences, 99 Haike Road, Zhangjiang Hi-Tech Park, Pudong, Shanghai 201210, China. yinm@sari.ac.cn lidd@sari.ac.cn.
authors.forename: Li
authors.initials: L
authors.lastname: Tian
authors.affiliation: Shanghai Advanced Research Institute, Chinese Academy of Sciences, 99 Haike Road, Zhangjiang Hi-Tech Park, Pudong, Shanghai 201210, China. yinm@sari.ac.cn lidd@sari.ac.cn.
authors.forename: Hui
authors.initials: H
authors.lastname: Wang
authors.affiliation: Shanghai Advanced Research Institute, Chinese Academy of Sciences, 99 Haike Road, Zhangjiang Hi-Tech Park, Pudong, Shanghai 201210, China. yinm@sari.ac.cn lidd@sari.ac.cn.
authors.forename: Xiaoyuan
authors.initials: X
authors.lastname: Chen
authors.affiliation: Shanghai Advanced Research Institute, Chinese Academy of Sciences, 99 Haike Road, Zhangjiang Hi-Tech Park, Pudong, Shanghai 201210, China. yinm@sari.ac.cn lidd@sari.ac.cn.
authors.forename: Dongdong
authors.initials: D
authors.lastname: Li