Kumar, Virendra and Nagal, Vandana and Kumar, Rahul and Srivastava, Shubhda and Gupta, Bipin Kumar and Kumar, Mahesh and Hafiz, Aurangzeb Khurram and Singh, Kedar (2020) Influence of the rate of radiation energy on the charge-carrier kinetics application of all-inorganic CsPbBr3 perovskite nanocrystal. RSC Advances , 10 (57). pp. 34651-34657. ISSN 2046-2069

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In the field of optoelectronics, all-inorganic CsPbBr(3)perovskite nanocrystals (PNCs) have gained significant interest on account of their superb processability and ultra-high stability among all the counterparts. In this study, we conducted an in-depth analysis of CsPbBr3PNCs using joint transient optical spectroscopies (time-resolved photoluminescence and ultrafast transient absorption) in a very comprehensive manner. In order to understand the in-depth analysis of excited-state kinetics, the transient absorption spectroscopy has been performed. The structure of interest of CsPbBr3PNCs was subjected to the rates of the radiation energy of 0.10 mW (kappa(r)/kappa(nr)= similar to 0.62) and 0.30 mW (kappa(r)/kappa(nr)= similar to 0.64). With the rate of radiation energy 0.30 mW, it was observed that there was a significant increase in hot carrier relaxation together with high radiative recombination, resulting in a decrease in charge trappings. Herein, we demonstrate that the tuning of the rate of radiation energies helps to understand the charge-carrier kinetics of CsPbBr3PNCs, which would thus improve the manufacturing of efficient photovoltaic devices.

Item Type: Article
Additional Information: Copyright for this article belongs to M/s Royal Society of Chemistry.
Subjects: Chemistry
Depositing User: Mr. Yogesh Joshi
Date Deposited: 25 Mar 2022 11:46
Last Modified: 25 Mar 2022 11:46
URI: http://npl.csircentral.net/id/eprint/4769

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