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. 2014 Jul 31;5:4506. doi: 10.1038/ncomms5506

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Absorption spectra are shown in a–d and relative oscillator strengths are plotted for the 1st exciton transition ( ) and 2nd exciton transition () in e–g. Regimes are designated as: (a,e) homoepitaxial growth (CdTe/CdTe), (b,f) Type I with electron and hole in the core (CdSe/ZnS), (c,g) Type II h/e with the hole in the core and electron in shell (CdTe/CdSe) and (d,h) Type II e/h with the electron in the core and hole in the shell (CdSe/ZnTe). Absorption spectra show cores with nominal shell thicknesses of 0 (black), 0.6 (red) and 1.2 (blue) monolayers (ML). Error bars are s.d.

Inline graphic — Absorption spectra are shown in a–d and relative oscillator strengths are plotted for the 1st exciton transition ( ) and 2nd exciton transition () in e–g. Regimes are designated as: (a,e) homoepitaxial growth (CdTe/CdTe), (b,f) Type I with electron and hole in the core (CdSe/ZnS), (c,g) Type II h/e with the hole in the core and electron in shell (CdTe/CdSe) and (d,h) Type II e/h with the electron in the core and hole in the shell (CdSe/ZnTe). Absorption spectra show cores with nominal shell thicknesses of 0 (black), 0.6 (red) and 1.2 (blue) monolayers (ML). Error bars are s.d.