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Tunability of intersubband transition wavelength in the atmospheric window in AlGaN/GaN multi-quantum wells grown on different AlGaN templates by metalorganic chemical vapor deposition
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10.1063/1.4754543
/content/aip/journal/jap/112/6/10.1063/1.4754543
http://aip.metastore.ingenta.com/content/aip/journal/jap/112/6/10.1063/1.4754543

Figures

Image of FIG. 1.
FIG. 1.

The schematic structure of those samples with different templates: (a) GaN, (b) Al0.1Ga0.9 N, (c) Al0.2Ga0.8 N, and (d) Al0.3Ga0.7 N.

Image of FIG. 2.
FIG. 2.

AFM images of samples A, B, C, and D (2.5 μm × 2.5 μm scan area).

Image of FIG. 3.
FIG. 3.

The experimental curves of HR-XRD (002) ω-2θ scan of samples A, B, C, and D.

Image of FIG. 4.
FIG. 4.

FTIR absorption spectra of samples A, B, C, and D. The insetted figure shows that the ISBT wavelength is blue moved with the increase of the Al mole composition in the AlGaN template.

Image of FIG. 5.
FIG. 5.

Raman spectra of samples A, B, C, and D. The insetted figure shows the Raman shift of GaN-E2 high mode as a function of the Al mole composition of AlGaN template.

Image of FIG. 6.
FIG. 6.

Reciprocal space mappings of (105) diffraction of samples A, B, C, and D.

Tables

Generic image for table
Table I.

The FWHM of (002) XRC of AlGaN templates.

Generic image for table
Table II.

Lattice constants of SL0 and AlGaN templates, and basal strain of those four samples.

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/content/aip/journal/jap/112/6/10.1063/1.4754543
2012-09-27
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Tunability of intersubband transition wavelength in the atmospheric window in AlGaN/GaN multi-quantum wells grown on different AlGaN templates by metalorganic chemical vapor deposition
http://aip.metastore.ingenta.com/content/aip/journal/jap/112/6/10.1063/1.4754543
10.1063/1.4754543
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