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Influence of bin time and excitation intensity on fluorescence lifetime distribution and blinking statistics of single quantum dots
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10.1063/1.3236772
/content/aip/journal/apl/95/16/10.1063/1.3236772
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/16/10.1063/1.3236772
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Figures

Image of FIG. 1.
FIG. 1.

(a) The distribution for the number of occurrence vs photon counts per bin time at several excitation intensities averaged from 25 QDs embedded in a PMMA matrix. A bin time of 1 ms was used. (b) Dependence of the total photon counts vs excitation intensity.

Image of FIG. 2.
FIG. 2.

(a) The dependence of the exponential bending rate for the on-events vs light intensity, showing linear dependence. QDs were spin-coated on a glass. (b) The linear dependence of the exponential bending rate for the on events vs light intensity. QDs in PMMA were spin coated. The curve shows an initial linear increase and then a leveling off.

Image of FIG. 3.
FIG. 3.

(a). The fluorescence lifetime distribution at for bin time of 1 and 100 ms from 16 QDs, showing width narrowing with a lengthened bin time. (b) The dependence of the distribution width vs bin time. The data curve could be fitted well by an empirical formula of for several light intensities. (c) The dependence of the fitted parameters and vs light intensity.

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/content/aip/journal/apl/95/16/10.1063/1.3236772
2009-10-19
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Influence of bin time and excitation intensity on fluorescence lifetime distribution and blinking statistics of single quantum dots
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/16/10.1063/1.3236772
10.1063/1.3236772
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