The dynamics of the radiative recombination of charge carriers in CdS nanoparticles stabilized in aqueous solutions of polyethyleneimine was studied. It was shown that decay of the photoluminescence of the nanoparticles is characterized by a set of time constants in the range of 10−1-102ns, while its rate depends on the energy of the radiation quanta. This relationship is interpreted as the result of competition between the processes of radiative recombination and vibrational dissipation of the excitation energy.
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This study was carried out within the framework of the collective research of the National Academy of Sciences of Ukraine, the Russian Foundation for Basic Research and the Siberian Branch of Russian Academy of Sciences (project 08-03-90425-Ukr and 32-08-10-Ukr, project SB RAS 70) supported by a grant of President of Ukraine for young scientists.
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Translated from Teoreticheskaya i Éksperimental’naya Khimiya, Vol. 46, No. 5, pp. 265-270, September-October, 2010. Original article submitted September 14, 2010.
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Raevskaya, A.E., Stroyuk, A.L., Grodzyuk, G.Y. et al. Dynamics of the radiative recombination of charge carriers in CdS nanoparticles stabilized with polyethyleneimine. Theor Exp Chem 46, 273–278 (2010). https://doi.org/10.1007/s11237-010-9152-z
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DOI: https://doi.org/10.1007/s11237-010-9152-z