Multi-band k·p calculations on tetrahedral InP/ZnSe QDs show excitonic spectra similar to spherical nanocrystals except in large red-emitting sizes, where selection-rule violations occur and biexciton binding changes sign.
The hole Hamiltonian, projected onto {|u3⟩,
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Electronic structure of InP/ZnSe quantum dots: effect of tetrahedral shape, valence band coupling and excitonic interactions
Multi-band k·p calculations on tetrahedral InP/ZnSe QDs show excitonic spectra similar to spherical nanocrystals except in large red-emitting sizes, where selection-rule violations occur and biexciton binding changes sign.