Controlling the energy transfer between near-field optically coupled ZnO quantum dots
Controlling the energy transfer between near-field optically coupled ZnO quantum dots
复制标题
DOI：
10.1007/s00340-008-3154-8
复制
发表时间：
2008-10-01
影响因子：
2.1
通讯作者：
Ohtsu, M.
中科院分区：
文献类型：
--
作者：
Yatsui, T.;Jeong, H.;Ohtsu, M.
我们对 ZnO 量子点 (QD) 进行了时间分辨光谱分析，并通过光学近场相互作用观察了 QD 之间的激子能量转移和耗散。将两种不同尺寸的具有共振能级的 ZnO QD 混合，使用时间分辨光致发光光谱测试能量转移和耗散。估计的能量传输时间为 144 ps。此外，我们证明了谐振能态之间的能量转移比率是可以控制的。
We performed time-resolved spectroscopy of ZnO quantum dots (QD), and observed exciton energy transfer and dissipation between QD via an optical near-field interaction. Two different sizes of ZnO QD with resonant energy levels were mixed to test the energy transfer and dissipation using time-resolved photoluminescence spectroscopy. The estimated energy transfer time was 144 ps. Furthermore, we demonstrated that the ratio of energy transfer between the resonant energy states could be controlled.