Exciton states of II–VI tetrapod-shaped nanocrystalsстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 20 сентября 2013 г.
Аннотация:Excitons of tetrapod-shaped nanocrystals made of CdTe,
CdS, CdSe, ZnTe, and ZnSe were investigated systematically by numerical
diagonalization of configuration interaction Hamiltonian based on singleparticle
states obtained by finite-element method. Both one-particle and
exciton wave functions have high spatial symmetries due to the tetrahedral
symmetry of the nanocrystals, which leads to a distinct selection rule for
optical absorption and emission. The absorption spectra thus calculated
were compared with available experimental data and good agreement was
found.