Semiconductor Physics, Quantum Electronics & Optoelectronics. 2010. V. 13, N 4. P. 428-431.
https://doi.org/10.15407/spqeo13.04.428

CdTe quantum dots precipitation of monodisperse fractions from colloid solutions
O.A. Savchuk1, L.I. Trishchuk1, I.A. Mazarchuk1, V.M. Tomashik1, Z.F. Tomashik1, O.P. Dimitriev1, S.D. Boruk2, D.O. Kapush3

1V. Lashkaryov Institute of Semiconductor Physics, NAS of Ukraine, 41, prospect Nauky, 03028 Kyiv, Ukraine; e-mail: savchuk-olja@rambler.ru
2Yu. Fedkovych Chernivtsi National University, 2, Kotsubinsky str., 58012 Chernivtsi, Ukraine
3I. Frantsevich Institute for Problems of Materials Science, NAS of Ukraine, 3, Krzhizhanivsky str., 03680 Kyiv-142, Ukraine

Abstract. CdTe nanocrystals were prepared in aqueous solution by the reaction between Cd 2+ and H 2 Te, obtained electrochemically in a galvanostatic cell, in the presence of thioglycolic acid. Subsequently, we have investigated precipitation of monodisperse fractions of CdTe quantum dots from polydisperse colloid solutions. In addition, the photoluminescence characteristics of these systems were studied in detail.

Keywords: cadmium compounds, quantum dots, nanocrystals, photoluminescence spectra.

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