...
首页> 外文期刊>Journal of Computational Electronics >Temperature induced anomalous exciton localization in InGaN/GaN and GaN/AlInN quantum wells
【24h】

Temperature induced anomalous exciton localization in InGaN/GaN and GaN/AlInN quantum wells

机译:温度引起的InGaN / GaN和GaN / AlInN量子阱中的异常激子局域化

获取原文
获取原文并翻译 | 示例
           

摘要

AbstractThis paper elucidates the details of exciton localization dynamics in InGaN/GaN and GaN/AlInN quantum wells (QWs) using Monte Carlo simulation for a wide range of temperatures (10–300 K). We find that the phonon-induced variation of exciton lifetimes has remarkable effects on the photoluminescence (PL) peak position and the line-width. The red-shift of PL peak position at high temperature is clarified. The combined effects of phonon-induced radiative lifetime of excitons and the band-gap shrinkage at high temperature show the most reasonable agreement with the experimentally observed red-shift of the PL peak position. We have also quantitatively explained the temperature dependence of the W-shaped line-width in both InGaN/GaN and GaN/AlInN QWs. These results are highly significant to understand the emission properties of III-nitride QWs optoelectronic devices.
机译: 摘要 本文阐述了InGaN / GaN和GaN /中激子局部化动力学的详细信息使用蒙特卡罗模拟的AlInN量子阱(QW)可在很宽的温度范围(10–300 K)中使用。我们发现,声子引起的激子寿命变化对光致发光(PL)峰位置和线宽具有显着影响。阐明了PL峰在高温下的红移。声子诱导的激子辐射寿命和高温下的带隙收缩的综合作用显示出与实验观察到的PL峰位置的红移最合理的一致性。我们还定量地解释了InGaN / GaN和GaN / AlInN QW中W形线宽的温度依赖性。这些结果对于理解III族氮化物量子阱光电器件的发射特性具有重要意义。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号