title: Fluorescence Blinking and Photoactivation of All-Inorganic Perovskite Nanocrystals CsPbBr3 and CsPbBr2I.
abstract: Study of the emission behavior of all-inorganic perovskite nanocrystals CsPbBr3 and CsPbBr2I as a function of the excitation power employing fluorescence correlation spectroscopy and conventional techniques reveals fluorescence blinking in the microsecond time scale and photoinduced emission enhancement. The observation provides insight into the radiative and nonradiative deactivation pathways of these promising substances. Because both blinking and photoactivation processes are intimately linked to the charge separation efficiency and dynamics of the nanocrystals, these key findings are likely to be helpful in realizing the true potential of these substances in photovoltaic and optoelectronic applications.
authors.affiliation: School of Chemistry, University of Hyderabad , Hyderabad 500046, India.
authors.forename: Sudipta
authors.initials: S
authors.lastname: Seth
authors.affiliation: School of Chemistry, University of Hyderabad , Hyderabad 500046, India.
authors.forename: Navendu
authors.initials: N
authors.lastname: Mondal
authors.affiliation: School of Chemistry, University of Hyderabad , Hyderabad 500046, India.
authors.forename: Satyajit
authors.initials: S
authors.lastname: Patra
authors.affiliation: School of Chemistry, University of Hyderabad , Hyderabad 500046, India.
authors.forename: Anunay
authors.initials: A
authors.lastname: Samanta