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Band gap engineering and spatial confinement of optical phonon in ZnO quantum dots
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10.1063/1.2218775
/content/aip/journal/apl/88/26/10.1063/1.2218775
http://aip.metastore.ingenta.com/content/aip/journal/apl/88/26/10.1063/1.2218775
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

PL (solid line) and absorption (dashed line) spectra near the band edge of various ZnO QD sizes.

Image of FIG. 2.
FIG. 2.

Typical Raman spectra of different sizes of ZnO QDs: (a) , (b) , (c) , and (d) .

Image of FIG. 3.
FIG. 3.

Fitting of the modified spatial correlation model with , 0.2, and 0.27, respectively, to the measured result for average size of ZnO QDs.

Image of FIG. 4.
FIG. 4.

Raman shift and asymmetric broadening of phonon as a function of correlation length or average size of nanocrystal. The solid curves indicate the calculated results of the modified SC model and the hollow circles the experimental results.

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/content/aip/journal/apl/88/26/10.1063/1.2218775
2006-06-30
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Band gap engineering and spatial confinement of optical phonon in ZnO quantum dots
http://aip.metastore.ingenta.com/content/aip/journal/apl/88/26/10.1063/1.2218775
10.1063/1.2218775
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