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Ultraviolet stimulated emission in periodically polarity-inverted ZnO structures at room temperature
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10.1063/1.3503605
/content/aip/journal/apl/97/17/10.1063/1.3503605
http://aip.metastore.ingenta.com/content/aip/journal/apl/97/17/10.1063/1.3503605
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Figures

Image of FIG. 1.
FIG. 1.

(a) spectra obtained from the Zn-polar, O-polar, and interfacial regions in the PPI ZnO structure which is conducted at 77 K. (b) Temperature dependence of the luminescence of PPI ZnO.

Image of FIG. 2.
FIG. 2.

(a) PL, (b) nonlinear, and (c) stimulated emission images from the PPI ZnO structures with the 325 nm (a) and 355 nm [(b) and (c)] excitation sources. The inset shows the measurement geometry of stimulated emission (c). The position for the linear and nonlinear PL is in the normal direction to the sample surface [(a) and (b)].

Image of FIG. 3.
FIG. 3.

The spectra of [middle (violet) and bottom (blue) lines] and stimulated emission [top (red) line] from 1D PPI ZnO structures observed at room temperature. Note that the difference between the EHP emission and FX emission is 60 meV which corresponds to the binding energy of exciton.

Image of FIG. 4.
FIG. 4.

(a) XRD rocking curves of (0002) ZnO and (b) LT PL spectra of PPI ZnO grown on [gray (red) line] and (black line), respectively.

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/content/aip/journal/apl/97/17/10.1063/1.3503605
2010-10-25
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Ultraviolet stimulated emission in periodically polarity-inverted ZnO structures at room temperature
http://aip.metastore.ingenta.com/content/aip/journal/apl/97/17/10.1063/1.3503605
10.1063/1.3503605
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