Table 1 |
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|
Structural parameters of the GaN/AlN QD samples and the measured morphology characteristics |
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|
Sample |
AlN spacer thickness (nm) |
GaN insertion layer thickness (nm) |
QD density (cm-2) |
Mean QD height (nm) |
Mean QD diameter (nm) |
QD AR |
|
|
||||||
|
A |
N/A |
None |
4.4 × 1011 |
1.1 |
10.2 |
0.11 |
|
B |
60 |
100 |
4.0 × 1011 |
1.5 |
10.5 |
0.14 |
|
C |
40 |
100 |
2.2 × 1011 |
1.9 |
11.8 |
0.16 |
|
D |
20 |
100 |
9.6 × 1010 |
2.9 |
17.2 |
0.17 |
|
|
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|
Niu et al. Nanoscale Research Letters 2011 6:611 doi:10.1186/1556-276X-6-611 |
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