Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556.
Nano Lett. 2010 Aug 11;10(8):2761-5. doi: 10.1021/nl100253r.
We explain the long-range correlations found by Stefani and his co-workers between blinking times of single colloidal quantum dot emission. Our explanation is based on the multiple recombination center model we recently suggested. The model produces positive correlations between subsequent on--on and off--off times and negative on--off correlations, as observed in the experiment. We also reproduce qualitatively the dependence of correlations between subsequent on--on, on-off, and off--off times on the number of switching events separating them.
我们解释了 Stefani 及其同事在单个胶体量子点发射的闪烁时间之间发现的长程相关性。我们的解释基于我们最近提出的多复合中心模型。该模型产生了后续 on-on 和 off-off 时间之间的正相关,以及实验中观察到的 on-off 时间之间的负相关。我们还定性地再现了后续 on-on、on-off 和 off-off 时间之间的相关性与分隔它们的开关事件数量的依赖关系。