Figure 2.

Low-temperature (20 K) PL spectra of GaSb/InGaAs QD sample on InP substrate. Dashed-dot and dashed lines show the PL spectra of type-II and type-I, respectively.

Shuhui et al. Nanoscale Research Letters 2012 7:87   doi:10.1186/1556-276X-7-87
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