Nonradiative resonant excitation transfer from nanocrystal quantum dots to adjacent quantum channels
Nonradiative resonant excitation transfer from nanocrystal quantum dots to adjacent quantum channels
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DOI：
10.1021/nl0719731
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发表时间：
2007-11-01
期刊：
影响因子：
10.8
通讯作者：
Madhukar, Anupam
中科院分区：
文献类型：
--
作者：
Lu, Siyuan;Madhukar, Anupam
在较低的激发功率和速率下，非辐射共振能量转移（NRET）可以从量子点中的激子转移到相邻量子阱中的束缚态.这表明，优化的NCQD-QW/纳米线系统中的NRET可以提供一种太阳能转换方法，该方法具有与激子太阳能电池所面临的电荷载流子产生和/或传输到电极/在电极中的瓶颈的可行折衷。
Evidence is provided for nonradiative resonant energy transfer (NRET) from excitons in nanocrystal quantum dots (NCQDs) to the confined states of an adjacent quantum well (QW) at low excitation power and rate competitive with the quantum dot radiative decay. This indicates that NRET in optimized NCQD-QW/nanowire systems may provide a solar energy conversion approach with a viable tradeoff with the bottlenecks of charge carrier generation and/or transport to/in electrodes faced by excitonic solar cells.