Ultrahigh-performance solar-blind photodetectors based on individual single-crystalline In2Ge2O7 nanobelts
Journal article published in 2010 by
Liang Li,
Pooi See Lee,
Chaoyi Yan,
Tianyou Zhai 
,
Xiaosheng Fang,
Meiyong Liao,
Yasuo Koide,
Yoshio Bando ,
Dmitri Golberg
,
Xiaosheng Fang,
Meiyong Liao,
Yasuo Koide,
Yoshio Bando ,
Dmitri Golberg
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Abstract
Solar-blind photodetectors are designed from individual In2Ge2O7 nanobelts using a standard photolithography technique. The detectors demonstrated high sensitivity and selectivity towards the solar-blind spectrum, fast response and decay times ∼ 3 ms, high responsivity ∼ 3.9 × 10^5 A W^−1, and high quantum efficiency ∼2.0 × 10^8%.