DYNAMICS OF THE RADIATIVE RECOMBINATION OF CHARGE CARRIERS IN CdS NANOPARTICLES STABILIZED WITH POLYETHYLENEIMINE

作者：Raevskaya A E^*; Stroyuk A L; Grodzyuk G Ya; Kuchmii S Ya; Dzhagan V M; Plyusnin V F; Grivin V P

来源：Theoretical and Experimental Chemistry, 2010, 46(5): 273-278.

DOI：10.1007/s11237-010-9152-z

• CdS nanoparticles
• polyethyleneimine
• radiative recombination
• photoluminescence kinetics
• flash photolysis

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) -10(2) ns, 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.

• 出版日期2010-12