標題: Improvement of quantum efficiency in green light-emitting diodes with pre-TMIn flow treatment
作者: Lee, Ya-Ju
Chen, Yi-Ching
Lu, Tien-Chang
光電工程學系
Department of Photonics
公開日期: 8-Jun-2011
摘要: The effects of pre-trimethlyindium (TMIn) flow on the improved electrical characteristics and highly stable temperature properties of InGaN green light-emitting diodes (LEDs) are discussed. For the LED sample with a pre-TMIn flow treatment, the tunnelling of injected carriers associated with threading defects is significantly reduced, which promotes the diffusion-recombination of injected carriers, as well as the overall emission efficiency of the LED. In addition, the pre-TMIn flow treatment evidently reduces the dependence of external quantum efficiency on temperature and efficiency droop of green LEDs. As a result, we conclude that the pre-TMIn flow treatment is a promising scheme for the improvement of output performance of InGaN-based green LEDs.
URI: http://dx.doi.org/10.1088/0022-3727/44/22/224015
http://hdl.handle.net/11536/30064
ISSN: 0022-3727
DOI: 10.1088/0022-3727/44/22/224015
期刊: JOURNAL OF PHYSICS D-APPLIED PHYSICS
Volume: 44
Issue: 22
結束頁: 
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