Solution-Processed Transparent CuO Thin Films for Solar-Blind Photodetection

被引：20
作者：
Dixit, Tejendra [1 ]
Tripathi, Akash [2 ]
Ganapathi, K. L. [1 ]
Palani, I. A. [3 ]
Rao, M. S. Ramachandra [1 ]
Singh, Vipul [2 ]
机构：
[1] IIT Madras, Dept Phys, Chennai 600036, India
[2] IIT Indore, Dept Elect Engn, Indore 453552, Madhya Pradesh, India
[3] IIT Indore, Dept Mech Engn, Indore 453552, Madhya Pradesh, India
来源：
IEEE ELECTRON DEVICE LETTERS | 2019年 / 40卷 / 02期
关键词：
CuO thin films; solar blind; self-powered photo-detection; persistent photoconductivity; PERSISTENT PHOTOCONDUCTIVITY; OPTOELECTRONIC PROPERTIES; NANOPARTICLES; MECHANISMS;
D O I：
10.1109/LED.2018.2886928
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Highly transparent (Transmittance >90%), solution-processed thin films of CuO with a direct bandgap of 3.87 eV were first time utilized for solar blind photodetection. The CuO thin-film-based photodetector has shown very large DUV/Vis. rejection ratio of similar to 5430. The device has shown photo-responsivity value of 7.77 A.W-1 and photo-detectivity of 3.08 x 10(11) cm.Hz(1/2).W-1. Interestingly, the device has shown persistent photoconductivity with a retention time of several days. In order to use the device for optical memory, the reset mechanism has been successfully demonstrated by annealing the device at 50 degrees C. The developed solution processed, highly transparent, solar-blind photodetector has immense potential for next-generation cost-effective optoelectronic devices.
引用
收藏
页码：255 / 258
页数：4
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