UV photodetectors based on 3D periodic Au-decorated nanocone ZnO films

被引：19
作者：
Fan, Haowen [1 ,2 ]
Sun, Mengwei [1 ,2 ]
Ma, Pengsha [2 ,3 ]
Yin, Min [2 ]
Lu, Linfeng [2 ]
Xue, Xinzhong [2 ]
Zhu, Xufei [1 ]
Li, Dongdong [2 ]
Ma, Jing [3 ,4 ]
机构：
[1] Nanjing Univ Sci & Technol, Educ Minist, Key Lab Soft Chem & Funct Mat, Nanjing 210094, Jiangsu, Peoples R China
[2] Chinese Acad Sci, Shanghai Adv Res Inst, 99 Haike Rd,Zhangjiang Hi Tech Pk, Shanghai 201210, Peoples R China
[3] Shanghai Univ, Sch Environm & Chem Engn, Shanghai 200444, Peoples R China
[4] Shanghai Key Lab Atmospher Particle Pollut & Prev, Shanghai, Peoples R China
来源：
NANOTECHNOLOGY | 2016年 / 27卷 / 36期
基金：
中国国家自然科学基金;
关键词：
UV photodetector; nanoimprinting; 3D structure; Au nanoparticles; GAS-SENSING PROPERTIES; LOW-COST; NANOSTRUCTURES; DETECTOR; ARRAYS; FABRICATION; ABSORPTION; NANOWIRES; BAND;
D O I：
10.1088/0957-4484/27/36/365303
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Thermal nanoimprinting technology was employed to fabricate 3D periodic nanocone ZnO films with different height/pitch values for photodetectors to optimize their light capturing property. The photocurrents of patterned film photodetectors increase with the height/pitch values. The patterned ZnO-Au hybrid film further boosts the ultraviolet (UV) response. Due to the co-contribution of the light trapping of 3D periodic structures and the driving force of the Schottky barrier in the Au/ZnO interface, the patterned ZnO-Au hybrid films with height/pitch of 40 nm/866 nm exhibit the best UV photoresponse (I-on/I-off = 779.927), which is 3.8 times higher than its film counterpart (I-on/I-off = 164.1).
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页数：7
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