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Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/12560

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
Issue Date: 2012-07-19T01:49:18Z
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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