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http://ir.ncue.edu.tw/ir/handle/987654321/12560
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Title: | Investigation of Blue InGaN Light-emitting Diodes with Step-like Quantum Well |
Authors: | Tsai, Miao-Chan;Yen, Sheng-Horng;Kuo, Yen-Kuang |
Contributors: | 物理學系 |
Date: | 2011-05
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Issue Date: | 2012-07-19T01:49:18Z
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Publisher: | SpringerLink |
Abstract: | The concept of a step-like quantum well is proposed with the purpose to reduce the influence of electrostatic field resulting from the piezoelectric effect on the optical performance of blue InGaN light-emitting diodes. Particularly, the optical properties of the LED structures with the In0.23Ga0.77N single quantum well, In0.20Ga0.80N/In0.26Ga0.74N step-like quantum well, and In0.26Ga0.74N/In0.20Ga0.80N step-like quantum well are numerically investigated in detail. Simulation results show that the In0.20Ga0.80N/In0.26Ga0.74N step-like-quantum-well LED structure has the best optical performance in virtue of the improvement in spatial overlap of electrons and holes in the quantum well. |
Relation: | Applied Physics A: Materials Science & Processing, 104(2): 621-626 |
Appears in Collections: | [物理學系] 期刊論文
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