Due to photoluminescence intermittency of single tional exponential fluorescence lifetime analysis is colloidal quantum dots (QDs), the tradinot perfect to characterize QDs' fluores- cent emission behavior. In this...Due to photoluminescence intermittency of single tional exponential fluorescence lifetime analysis is colloidal quantum dots (QDs), the tradinot perfect to characterize QDs' fluores- cent emission behavior. In this work we used the time-tagged time-resolved (TTTR) mode to record the fluorescent photons from single QDs. We showed that this method is compatible with the traditional lifetime analysis. In addition, by constructing the trajectory over time and the distribution of average arrival time (AAT) of the fluorescent photons, inore details about the emission behavior of QDs were revealed.展开更多
基金supported by the National Science Foundation CAREER award(CHE-1554800)
文摘Due to photoluminescence intermittency of single tional exponential fluorescence lifetime analysis is colloidal quantum dots (QDs), the tradinot perfect to characterize QDs' fluores- cent emission behavior. In this work we used the time-tagged time-resolved (TTTR) mode to record the fluorescent photons from single QDs. We showed that this method is compatible with the traditional lifetime analysis. In addition, by constructing the trajectory over time and the distribution of average arrival time (AAT) of the fluorescent photons, inore details about the emission behavior of QDs were revealed.