Abstract
AbstractVariations in absorption and emission spectra induced by thermal treatment are reported for aqueous solutions of thiol‐stabilized CdTe nanocrystals with different Cd2+:Te2– molar ratios. Heating of colloids was shown to result in appearance of two photoluminescence lines that were assigned to two ensembles of nanocrystals with different mean diameters. Effect of heat treatment on size distribution, absorption and emission properties, and stability of nanocrystals with various Cd2+:Te2– molar ratios is discussed in the terms of different coverage of the nanocrystal surfaces with tellurium atoms (ions?) and with thioglycolic acid molecules. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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