Table 1

Layer structures for samples without and with AlAs capping

Without AlAs capping

With AlAs capping


100 nm p-GaAs

100 nm p-GaAs


20 nm i-GaAs

20 nm i-GaAs


6.6 nm i-InGaAs

6.6 nm i-InGaAs

InAs QDs

10×

0.283 nm AlAs

10×

InAs QDs

20 nm i-GaAs

20 nm i-GaAs


1 μm n-GaAs buffer

1 μm n-GaAs buffer


n-GaAs substrate

n-GaAs substrate


Hu et al. Nanoscale Research Letters 2011 6:83   doi:10.1186/1556-276X-6-83

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