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Biexciton emission from sol-gel ZnMgO nanopowders
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10.1063/1.3428780
/content/aip/journal/apl/96/19/10.1063/1.3428780
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/19/10.1063/1.3428780
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Figures

Image of FIG. 1.
FIG. 1.

(a) Low- PL spectra of nanopowders taken at . : localized exciton and : donor-bound exciton (b) -dependent PL peak energies in nanopowders. The dashed line shows the where the recombination of free excitons starts to dominate the luminescence.

Image of FIG. 2.
FIG. 2.

(a) Evolution of PL spectra as a function of for nanopowders , taken at 100 K. The dotted line represents the fitting curve to emission band, excited at . The dashed lines represent both the peak positions of free excitonic and free biexcitonic PL bands. (b) Evolution of PL spectra as a function of for nanopowders , taken at 100 K. (c) Evolution of PL spectra as a function of for nanopowders , taken at 100 K. The corresponding for each spectrum are listed beside the spectra.

Image of FIG. 3.
FIG. 3.

-dependent PL spectra of nanopowders under . The solid lines label the shifts in and emission peak energies. The emission completely disappears at .

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/content/aip/journal/apl/96/19/10.1063/1.3428780
2010-05-11
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Biexciton emission from sol-gel ZnMgO nanopowders
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/19/10.1063/1.3428780
10.1063/1.3428780
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