Effect of Auger recombination in ensemble of CdSe nanocrystals on their luminescenceстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 9 октября 2019 г.
Аннотация:The temperature dependence of the photoluminescence intensity of colloidal CdSe nanocrystals having 5nm in diameter was studied. It was demonstrated that the photoluminescence intensity exhibits a hysteresis at temperatures below 220K. This effect was explained by a model taking into account formation of an additional nonradiative relaxation channel associated with Auger recombination promoted by hole trapping on the surface of the nanocrystals. The activation energy of the hole release process obtained in the framework of the model was 0.7eV.