1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Nanoscale band gap spectroscopy on ZnO and GaN-based compounds with a monochromated electron microscope
Rent:
Rent this article for
USD
10.1063/1.3222974
/content/aip/journal/apl/95/10/10.1063/1.3222974
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/10/10.1063/1.3222974
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Top: TEM bright field image of arsenic-implanted ZnO before annealing. Bottom: The electron band gap profiles were measured with monochromated EELS, on an arsenic-implanted specimen without subsequent annealing (blue squares), on a specimen with 2 min annealing at (red circles), and on a specimen with 2 min annealing at (green triangles) in ambient air. The inset shows resonant Raman spectra from undoped ZnO and arsenic-implanted ZnO (without annealing).

Image of FIG. 2.
FIG. 2.

STEM annular dark field (ADF) image of the multilayer with projected cadmium (black) and band gap (red) profiles. The ZnO substrate is indicated at the right, the specimen surface is on the left-hand side, marked by the bright platinum band from FIB specimen preparation.

Image of FIG. 3.
FIG. 3.

Low-loss EELS spectra taken from the central 1.5 nm of an quantum well (pink) and from the GaN spacers between the quantum wells (light blue), compared with bulk (red) and GaN reference spectra (dark blue). The spectrum inset shows a closeup of the band gap features. The lower part of the figure shows a STEM ADF image, taken with the same probe settings as the adjacent EELS maps, which image the band gap energy (binned twice) and the bulk plasmon energy of the four quantum wells.

Loading

Article metrics loading...

/content/aip/journal/apl/95/10/10.1063/1.3222974
2009-09-11
2014-04-20
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Nanoscale band gap spectroscopy on ZnO and GaN-based compounds with a monochromated electron microscope
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/10/10.1063/1.3222974
10.1063/1.3222974
SEARCH_EXPAND_ITEM