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Local luminescence of ZnO nanowire-covered surface: A cathodoluminescence microscopy study
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10.1063/1.1852709
/content/aip/journal/apl/86/2/10.1063/1.1852709
http://aip.metastore.ingenta.com/content/aip/journal/apl/86/2/10.1063/1.1852709
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Figures

Image of FIG. 1.
FIG. 1.

SEM images of ZnO nanowires grown on -plane sapphire which was precoated with a 3 nm Au film. (a) Low-magnification view. (b) High-magnification view. Inset: Inclined view of an individual 110 nm diameter nanowire.

Image of FIG. 2.
FIG. 2.

(a) Top view SEM of the sample surface with the electron beam focused on the substrate surface. The white spots correspond to the nanowires. (b) Cross-sectional TEM image of the substrate surface. (c) A high-resolution TEM image of the square area in (b). The dashed line indicates the sapphire surface.

Image of FIG. 3.
FIG. 3.

(Color online) (a) Spatially integrated CL spectrum, and (b) corresponding panchromatic CL image showing the intensity distribution. The dashed line indicates the position of standard line. DBE = deeply bound excitons.

Image of FIG. 4.
FIG. 4.

(Color online) Left column: Local CL spectra recorded from (a) an individual nanowire and [(b) and (c)] two different spots on the wetting layer. Note that the spectra in (b) and (c) are multiplied by 40 and 200, respectively, relative to that in (a) for better visibility. The dashed lines indicate the position of the standard line. Right column: Monochromatic CL images for specific luminescence lines in the corresponding spectra. The scale bar applies for all images.

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/content/aip/journal/apl/86/2/10.1063/1.1852709
2005-01-06
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Local luminescence of ZnO nanowire-covered surface: A cathodoluminescence microscopy study
http://aip.metastore.ingenta.com/content/aip/journal/apl/86/2/10.1063/1.1852709
10.1063/1.1852709
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