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Effect of self-patterned template layer on the structural and optical properties of Ge dots
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10.1116/1.1844051
/content/avs/journal/jvstb/23/1/10.1116/1.1844051
http://aip.metastore.ingenta.com/content/avs/journal/jvstb/23/1/10.1116/1.1844051

Figures

Image of FIG. 1.
FIG. 1.

AFM images of structure with and (a); with subsequent growth of 8 ML Ge (b). Scan size is .

Image of FIG. 2.
FIG. 2.

Evolution of Ge island size with ( is the Ge concentration of the template layer). Ge deposited thickness is 7 ML.

Image of FIG. 3.
FIG. 3.

Cross-sectional TEM images of capped island for 7 ML with (a) and (b) .

Image of FIG. 4.
FIG. 4.

Raman spectra of Ge structures with (a) , (b) , and (c) .

Image of FIG. 5.
FIG. 5.

PL spectra of Ge structures under excitation power and .

Image of FIG. 6.
FIG. 6.

(a) PL spectra of Ge structures with (A), (B), and (C) under excitation power and . (b) Evolution of the full width at half-maximum of with .

Image of FIG. 7.
FIG. 7.

Power dependence of (a) peak energy and (b) integrated PL intensity for Ge structure at .

Image of FIG. 8.
FIG. 8.

Temperature dependence of PL spectra for Ge under excitation power . (a) in the range ; (b) in the range .

Tables

Generic image for table
TABLE I.

Lateral base length and height of uncapped island and capped island with concentration of Ge varying from 30% to 50%.

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/content/avs/journal/jvstb/23/1/10.1116/1.1844051
2005-01-21
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Effect of self-patterned Si1−xGex template layer on the structural and optical properties of Ge dots
http://aip.metastore.ingenta.com/content/avs/journal/jvstb/23/1/10.1116/1.1844051
10.1116/1.1844051
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