Enhanced solar-blind responsivity of photodetectors based on cubic MgZnO films via gallium doping | Zendy

Xiuhua Xie | Zendy; Zhenzhong Zhang | Zendy; Binghui Li | Zendy; Shuangpeng Wang | Zendy; Mingming Jiang | Zendy; ChongXin Shan | Zendy; Dongxu Zhao | Zendy; Hongyu Chen | Zendy; Dezhen Shen | Zendy

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Enhanced solar-blind responsivity of photodetectors based on cubic MgZnO films via gallium doping

Author(s) -

Xiuhua Xie,

Zhenzhong Zhang,

Binghui Li,

Shuangpeng Wang,

Mingming Jiang,

ChongXin Shan,

Dongxu Zhao,

Hongyu Chen,

Dezhen Shen

Publication year - 2014

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.22.000246

Subject(s) - responsivity , materials science , doping , photodetector , optoelectronics , chemical vapor deposition , gallium , electric field , optics , thin film , nanotechnology , physics , quantum mechanics , metallurgy

We report on gallium (Ga) doped cubic MgZnO films, which have been grown by metal organic chemical vapor deposition. It was demonstrated that Ga doping improves the n-type conduction of the cubic MgZnO films. A two-orders of magnitude enhancement in lateral n-type conduction have been achieved for the cubic MgZnO films. The responsivity of the cubic MgZnO-based photodetector has been also enhanced. Depletion region electric field intensity enhanced model was adopted to explain the improvement of quantum efficiency in Ga doped MgZnO-based detectors.

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