caa a22 4500 467923426 CHVBK 20180406152923.0 cr unu---uuuuu 170328e20060701xx s 000 0 eng 10.1134/S1087659606040031 doi (NATIONALLICENCE)springer-10.1134/S1087659606040031 Kolobkova E. St. Petersburg State Technological Institute, Technical University, Moskovskii pr. 26, 198013, St. Petersburg, Russia aut Specific features of the growth of CdSe nanocrystals in fluorophosphate glasses [Elektronische Daten] [E. Kolobkova] The choice of the composition of the fluorophosphate vitreous matrix used for optimizing the growth of CdSe nanocrystals with a narrow size distribution is justified. Investigation of the X-ray diffraction parameters has revealed that nanocrystals with sizes varying over a wide range have a hexagonal structure. The evolution of the absorption spectra of fluorophosphate glasses containing CdSe semiconductor nanocrystals is studied. It is shown that the growth mechanism of CdSe nanocrystals differs radically from the nucleation mechanism. The time dependences of the nanocrystal size exhibit an intricate three-stage behavior. The first stage is accompanied by a shift in the absorption spectrum toward the long-wavelength range. After the first stage, the time dependences are characterized by "fast” and "slow” portions. In the fast portion, the exponent of the time dependence of the nanocrystal size increases from 0.4 to 1.0 with an increase in the annealing temperature. The assumption is made that the spinodal decomposition of phases under hyperbolic diffusion occurs in the system under investigation. Pleiades Publishing, Inc., 2006 Glass Physics and Chemistry Nauka/Interperiodica 32/4(2006-07-01), 404-411 1087-6596 32:4<404 2006 32 10720 https://doi.org/10.1134/S1087659606040031 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S1087659606040031 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Kolobkova E. St. Petersburg State Technological Institute, Technical University, Moskovskii pr. 26, 198013, St. Petersburg, Russia aut NATIONALLICENCE 773 0- Glass Physics and Chemistry Nauka/Interperiodica 32/4(2006-07-01), 404-411 1087-6596 32:4<404 2006 32 10720 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer