Temperature dependence of exciton transfer in hybrid quantum well/nanocrystal heterostructures
Temperature dependence of exciton transfer in hybrid quantum well/nanocrystal heterostructures
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DOI：
10.1063/1.2776865
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发表时间：
2007-08-27
影响因子：
4
通讯作者：
Watson, Ian M.
中科院分区：
文献类型：
--
作者：
Rohrmoser, Stefan;Baldauf, Julia;Watson, Ian M.
作者研究了激子从单个InGaN量子阱（QW）给体转移到胶体CdS纳米晶体量子点受体的温度依赖性，并在60 K下获得了65%的最佳转移效率。时间和光谱分辨测量表明，传递效率主要取决于激子局域化和量子阱固有的非辐射重组之间的相互作用。
The authors investigate the temperature dependence of exciton transfer from a single InGaN quantum well (QW) donor to colloidal CdS nanocrystal quantum dot acceptors and obtain an optimum transfer efficiency of 65% at 60 K. Time and spectrally resolved measurements reveal that the transfer efficiency is dominated by the interplay between exciton localization and nonradiative recombination intrinsic to the QW.