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Influences of light intensity on fluorescence lifetime of nanorods and quantum dots
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10.1063/1.3021366
/content/aip/journal/apl/93/22/10.1063/1.3021366
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/22/10.1063/1.3021366
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) TEM image of CdSe NRs. (b) Fluorescence intensity time traces for a single NR with excitation intensity at , excitation wavelength at 467 nm, and binning time of 1 ms. (c) The zoom-in area from 100 to 110 s.

Image of FIG. 2.
FIG. 2.

The lifetime distribution at different excitation intensities for a single (a) 40 nm, (b) 20 nm NR, and (c) 3.3 nm QD. The excitation intensities are 95 [(a) black], 190 [(b) red], 380 [(c) blue], and 570 [(d) cyan] . Unlike NRs that can be fitted by a Gaussian, for QDs with a broader wing the distribution could be fitted better by a Lorentzian.

Image of FIG. 3.
FIG. 3.

(a) The inverse of the central position of the lifetime distribution vs the excitation intensity for a single NR with lengths of 40 nm (blue) and 20 nm (red) NR, and a single QD with radius of 3.3 nm QD (black). (b) The inverse of the linewidth vs the intensity.

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/content/aip/journal/apl/93/22/10.1063/1.3021366
2008-12-04
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Influences of light intensity on fluorescence lifetime of nanorods and quantum dots
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/22/10.1063/1.3021366
10.1063/1.3021366
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