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Teoret. i eksperim. khimiya. 2006. Vol.42 No. 6. p. 339-344

Effect of PbS Nanoparticles on Formation of PbSe
in Aqueous Solutions of Sodium Selenosulfate and Lead(II)


A. L. Stroyuk, A. E. Raevskaya, S. Ya. Kuchmy

L. V. Pysarzhevsky Institute of Physical Chemistry, National Academy of Sciences of Ukraine
Prosp. Nauky, 31, Kyiv 03028, Ukraine. E-mail: stroyuk@inphyschem-nas.kiev.ua

A substantial acceleration of formation of lead selenide by PbS nanoparticles was established for interac- tion between Pb(NO3)2 and Na2SeSO3 in aqueous polymer solutions. It was shown that PbS/PbSe nanoparticles, having the "core PbS - shell PbSe" structure are the reaction product. A correlation be- tween the band gaps of PbS and PbS/PbSe nanoparticles was established.

Key word PbS nanoparticles, PbSe nanoparticles, semiconductor nanostructures.