UV photodetectors based on 3D periodic Au-decorated nanocone ZnO films
UV photodetectors based on 3D periodic Au-decorated nanocone ZnO films
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基于 3D 周期性金装饰纳米锥 ZnO 薄膜的紫外光电探测器
DOI：
10.1088/0957-4484/27/36/365303
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发表时间：
2016
期刊：
影响因子：
3.5
通讯作者：
Ma Jing
中科院分区：
文献类型：
--
作者：
Fan Haowen;Sun Mengwei;Ma Pengsha;Yin Min;Lu Linfeng;Xue Xinzhong;Zhu Xufei;Li Dongdong;Ma Jing
采用热纳米压印技术制备具有不同高度/间距值的三维周期性纳米锥ZnO薄膜，用于光电探测器，以优化其光捕获性能。图案化膜光电探测器的光电流随着高度/间距值而增加。图案化的ZnO-Au混合膜进一步增强紫外（UV）响应。由于三维周期结构的光捕获和Au/ZnO界面肖特基势垒驱动力的共同作用，高度/间距为40 nm/866 nm的ZnO-Au杂化薄膜具有最佳的紫外光响应（Ion/Ioff = 779.927），是其对应薄膜（Ion/Ioff = 164.1）的3.8倍。
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 (Ion/Ioff = 779.927), which is 3.8 times higher than its film counterpart (Ion/Ioff = 164.1).