Department of Physics, University of Southern California, Los Angeles, California 90089, USA.
Nano Lett. 2009 Dec;9(12):4548-52. doi: 10.1021/nl903104k.
We report the observation of photocurrent in silicon nanowires induced by nonradiative resonant energy transfer (NRET) from adjacent layers of lead sulfide nanocrystal quantum dots using time-resolved photocurrent measurements. This demonstration supports the feasibility of a new solar cell paradigm (Lu, S.; Madhukar, A. Nano Lett. 2007, 7, 3443-3451) that exploits NRET between efficient photon absorbers and adjacent nanowire/quantum well high-mobility charge transport channels and could offer a viable alternative to the limitations of carrier transport and collection faced by excitonic solar cells.
我们通过时间分辨光电流测量，报告了在硅纳米线中观察到的由相邻层的硫化铅纳米晶量子点的非辐射共振能量转移（NRET）引起的光电流。这一演示支持了一种新的太阳能电池范例（Lu，S.；Madhukar，A. Nano Lett. 2007，7，3443-3451）的可行性，该范例利用了高效光子吸收体与相邻纳米线/量子阱高迁移率电荷传输通道之间的 NRET，这可能为激子太阳能电池所面临的载流子输运和收集的限制提供一种可行的替代方案。
