National Changhua University of Education Institutional Repository : Item 987654321/12482

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NCUEIR > College of Science > Department of Physics > Periodical Articles > Item 987654321/12482

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/12482

Title:	Experimental and Theoretical Analysis on Ultraviolet 370 nm AlGaInN Light-emitting Diodes
Authors:	Chang, Yi-An;Yen, Sheng-Horng;Wang, Te-Chung;Kuo, Hao-Chung;Kuo, Yen-Kuang;Lu, Tien-Chang;Wang, Shing-Chung
Contributors:	物理學系
Date:	2006-03
Issue Date:	2012-07-19T01:47:32Z
Publisher:	IOP Publishing Ltd
Abstract:	An ultraviolet (UV) AlGaInN light-emitting diode (LED) with 370 nm emission is demonstrated. At room temperature (RT) UV power of 0.8 mW at 20 mA with 3.6 V operation voltage is achieved. It provides 4 mW output when driven at 125 mA under continuous-wave (CW) operation. Qualitative optimization of the Al composition in the AlGaN electron-block layer and the quaternary AlGaInN quantum well (QW) number of the UV LED is also investigated in this study. The numerical results fit with the experimentally demonstrated output performance of our AlGaInN UV LED. We find that the UV AlGaInN LED can provide better output characteristics when the Al composition in the AlGaN electron-block layer is in the range 19–21% and the AlGaInN QW number is in the range 5–7 by reducing the electron leakage current.
Relation:	Semiconductor Science and Technology, 21(5): 598-603
Appears in Collections:	[Department of Physics] Periodical Articles

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