Figure 2.

Pholuminescence spectra of CTQRs recorded at 15 K. GaAs and Al0.3Ga0.7As peaks appeared at 1.52 and 1.90 eV, respectively. Between them additional two features appeared, at 1.55 eV (Peak 1) and at 1.76 eV (Peak 2)

Somaschini et al. Nanoscale Research Letters 2010 5:1897-1900   doi:10.1007/s11671-010-9752-5