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Optimization of growing green-emitting InGaN/GaN multiple quantum wells on stress-relieving superlattices

机译:消除应力超晶格上生长绿色的InGaN / GaN多量子阱的优化

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摘要

Optimization of photoluminescence intensity of green-emitting InGaN/GaN multiple quantum wells deposited on a template consisting of low-indium-content short-period superlattice was studied by growing the structures at different temperatures for active layer and template. The importance of carrier localization is revealed. The temperatures for growing the template and the active layer predominantly influence large-scale and small-scale potential fluctuations experienced by nonequilibrium carriers, respectively, while the difference between the temperatures impacts the formation of nonradiative recombination centers, and has to be maintained small to ensure high photoluminescence intensity.
机译:通过在不同温度下生长有源层和模板的结构,研究了沉积在由低铟含量短周期超晶格组成的模板上的绿色发射InGaN / GaN多量子阱的光致发光强度的优化。揭示了载子定位的重要性。用于生长模板和活性层的温度分别主要影响非平衡载流子经历的大规模和小规模电势波动,而温度之间的差异会影响非辐射复合中心的形成,必须保持较小的温度以确保高的光致发光强度。

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