Colloidal chemically fabricated ZnO : Cu-based photodetector with extended UV-visible detection waveband.
Polycrystalline ZnO : Cu-based film photodetectors with extended detection waveband (UV and visible light) were fabricated using facile colloidal chemistry and a post-annealing process. The obtained detectors are highly sensitive to visible light and can realize the response switch between UV and visible light. A native and extrinsic trap cooperatively controlled space charge limited (SCL) transport mechanism is proposed to understand this complex photoconduction behaviour.
State Key Laboratory of Silicon Materials, Dept. of Materials, Zhejiang University, Hangzhou, 310027, People's Republic of China. zlp1@zju.edu.cn hphe@zju.edu.cn.
Liang
L
Hu
Liping
L
Zhu
Haiping
H
He
Yanming
Y
Guo
Guoyao
G
Pan
Jie
J
Jiang
Yizheng
Y
Jin
Luwei
L
Sun
Zhizhen
Z
Ye