LU Hui-min, CHEN Gen-xiang. Influence of Polarization Effect on Optoelectronic Properties of InGaN/GaN Multiple Quantum Well[J]. Chinese Journal of Luminescence, 2011,32(3): 266-271
LU Hui-min, CHEN Gen-xiang. Influence of Polarization Effect on Optoelectronic Properties of InGaN/GaN Multiple Quantum Well[J]. Chinese Journal of Luminescence, 2011,32(3): 266-271DOI:
极化效应对InGaN/GaN多量子阱结构光电特性的影响
摘要
通过求解修正的基于 k·p 方法的有效质量哈密顿方程并与泊松方程进行自洽
得到在极化效应影响下InGaN/GaN多量子阱的能带结构和自发辐射谱。计算结果表明
极化效应使InGaN/GaN多量子阱结构的带边由方形势变成三角形势
使导带和价带间的带隙宽度减小导致发光峰值波长红移
并使电子和空穴的分布产生空间分离从而减小发光效率。同时
随着InGaN/GaN多量子阱结构阱层In组分的增多或阱层宽度的增加
极化效应带来的发光峰值波长红移效果进一步增强。
Abstract
paper
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references
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