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Surface optical Raman modes in InN nanostructures
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10.1063/1.3040681
/content/aip/journal/apl/93/23/10.1063/1.3040681
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/23/10.1063/1.3040681

Figures

Image of FIG. 1.
FIG. 1.

Raman spectra for InN (a) NWs and (b) NBs. Full curve: total fitted spectrum, dashed curves: individual fitted peaks. Peaks corresponding to SO mode are indicated by arrows.

Image of FIG. 2.
FIG. 2.

Calculated SO phonon frequencies as a function of , full curve: SO , dashed curve: SO . Horizontal full and dashed lines are the TO and LO frequencies of and modes, respectively. Symbols are measured SO frequencies, open symbol: NWs, filled symbol: NBs. Vertical line at corresponds to .

Image of FIG. 3.
FIG. 3.

(a) Raman spectra of InN NBs immersed in . Full curve: total fitted spectrum, dashed curves: individual fitted peaks. The inset shows SO modes under the expanded range of . (b) Reduction in intensities in SO modes with increasing average diameter of the nanostructures. Fitted curves are shown only for SO modes, indicated by arrows.

Image of FIG. 4.
FIG. 4.

Surface roughness in typical (a) NWs and (b) NBs. Arrows show the modulation in the surface structure. Diameters and the calculated wavelengths of surface potential are also inscribed.

Tables

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Table I.

Raman modes in NWs and NBs samples of wurtzite InN.

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/content/aip/journal/apl/93/23/10.1063/1.3040681
2008-12-11
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Surface optical Raman modes in InN nanostructures
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/23/10.1063/1.3040681
10.1063/1.3040681
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