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Photocarrier recombination dynamics in highly excited studied by transient absorption and photoluminescence spectroscopy
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10.1063/1.3238269
/content/aip/journal/apl/95/12/10.1063/1.3238269
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/12/10.1063/1.3238269
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

TA spectra at the delay times of 5 ps and 2 ns. Drude-like curve is shown for guide to the eye. The inset shows the linear absorption spectra of nondoped , and Nb-doped (0.02 and 0.1 mol %).

Image of FIG. 2.
FIG. 2.

TA decay dynamics of nondoped at different excitation densities of (1) , (2) , (3) , and (4) . The inset shows the temporal evolution of optical density change at excitation density in the nanosecond time region.

Image of FIG. 3.
FIG. 3.

(a) PL decay dynamics under excitation of (1) , (2) , (3) , and (4) in the subnanosecond time region. The inset shows the PL decay dynamics under excitation of . (b) The excitation density dependence of the PL intensity just after excitation. The inset shows a typical PL spectrum of .

Image of FIG. 4.
FIG. 4.

Excitation-density dependence of the decay times derived from TA and PL decay curves. The solid curves show the fitting results using Eq. (2).

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/content/aip/journal/apl/95/12/10.1063/1.3238269
2009-09-25
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Photocarrier recombination dynamics in highly excited SrTiO3 studied by transient absorption and photoluminescence spectroscopy
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/12/10.1063/1.3238269
10.1063/1.3238269
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