Enhanced efficiency in near-infrared inorganic/organic hybrid optical upconverter with an embedded mirror

被引:28
作者
Chen, Jun [1 ]
Ban, Dayan [1 ]
Feng, Xiaodong [2 ]
Lu, Zhenghong [2 ]
Fathololoumi, Saeed [1 ]
SpringThorpe, Anthony J. [3 ]
Liu, H. C. [3 ]
机构
[1] Univ Waterloo, Dept Elect & Comp Engn, Waterloo, ON N2L 3G1, Canada
[2] Univ Toronto, Dept Mat Sci & Engn, Toronto, ON M5S 3E4, Canada
[3] Natl Res Council Canada, Inst Microstruct Sci, Ottawa, ON K1A 0R6, Canada
关键词
D O I
10.1063/1.2927491
中图分类号
O59 [应用物理学];
学科分类号
摘要
We report a hybrid organic-inorganic optical upconverter with an embedded mirror, which converts 1.5 mu m infrared light to visible light. The device was fabricated through direct tandem integration of an organic light-emitting diode with an inorganic InGaAs/InP photodetector. It was found that the device with an embedded mirror exhibited a low turn-on voltage (similar to 3.2 V) and an enhanced efficiency. The ratio of photocurrent-induced light with an input power density of 0.67 mW/mm(2) versus dark-current-induced visible light was over 500 at a device bias of 6 V at room temperature. The results show that the embedded mirror at the inorganic-organic interface plays a vital role in the performance enhancement of a hybrid upconverter. (C) 2008 American Institute of Physics.
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页数:5
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