標題: Short-time power-law blinking statistics of single quantum dots and a test of the diffusion-controlled electron transfer model
作者: Tang, Jau
Lee, Der-Hau
Yeh, Yi-Cheun
Yuan, Chi-Tsu
光電工程學系
Department of Photonics
關鍵字: cadmium compounds;diffusion;II-VI semiconductors;semiconductor quantum dots;zinc compounds
公開日期: 14-Aug-2009
摘要: In this work we analyzed the blinking statistics data of single CdSe/ZnS quantum dots at vey short times to test some predictions of the diffusion-controlled electron transfer (DCET) model. Using autocorrelation function (ACF) approach we could extract the exponent of the inverse power-law blinking statistics down to 1 mu s. Such an approach also minimizes human subjectivity in choosing a bin time and an on-off threshold. We showed that the observed stretched exponential decay in the ACF and its relationship to the blinking statistics are consistent with the DCET model, and we set an upper bound for the characteristic time constant t(c).
URI: http://dx.doi.org/10.1063/1.3205406
http://hdl.handle.net/11536/6816
ISSN: 0021-9606
DOI: 10.1063/1.3205406
期刊: JOURNAL OF CHEMICAL PHYSICS
Volume: 131
Issue: 6
結束頁: 
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