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Intensity-dependent enhancement of saturable absorption in nanohybrid composites: Evidence for resonant energy transfer by Auger recombination
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10.1063/1.2952273
/content/aip/journal/apl/92/25/10.1063/1.2952273
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/25/10.1063/1.2952273

Figures

Image of FIG. 1.
FIG. 1.

HRTEM images of starting PbS QDs (a) and nanohybrid composites (b), UV-visible-NIR spectra of PbS QDs and nanohybrid composites (c); calculated transition energies of PbS QDs and their Gaussian broadening fitting (d). is defined as , where , , is the radius of QDs, is the root of the spherical Bessel function of order, , and is the effective mass of electron (or hole).

Image of FIG. 2.
FIG. 2.

Time-resolved transient change in transmission measured in PbS QDs and nanohybrid composites with pulsed excitation at .

Image of FIG. 3.
FIG. 3.

Illustration of resonant energy transfer by Auger process.

Tables

Generic image for table
Table I.

Fitting parameters based on double-exponential decay: .

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/content/aip/journal/apl/92/25/10.1063/1.2952273
2008-06-24
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Intensity-dependent enhancement of saturable absorption in PbS–Au4 nanohybrid composites: Evidence for resonant energy transfer by Auger recombination
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/25/10.1063/1.2952273
10.1063/1.2952273
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