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. 2018 Jul 18;12(8):8104–8114. doi: 10.1021/acsnano.8b02976

Figure 3.

Figure 3

Quantum mechanical calculation and optical analysis of the InP/ZnO core/shell QDs. Electronic properties of (a) an InP core with type-I band alignment and (b) an InP/ZnO heterostructure with type-II band alignment determined by quantum mechanical calculations. In both figures (a) and (b), black lines correspond to the radial probability distribution of the electron, while red ones show a radial probability distribution of the holes. Dashed lines represent single electron and hole energies; blue line corresponds to confinement potential profile for the electron. To avoid confusion, only the conduction band profile in (a) and (b) are shown. (c) Steady-state absorbance (dashed) and photoluminescence (PL) (solid) of the InP core (black) and InP/ZnO core/shell QDs (red) dispersed in hexane. (d) Time-resolved PL of the InP core (black) and InP/ZnO core/shell QDs (red) dispersed in hexane.