Viswanatha, Ranjani ; Amenitsch, Heinz ; Santra, Sanjitarani ; Sapra, Sameer ; Datar, Suwarna S. ; Zhou, Yu ; Nayak, Saroj K. ; Kumar, Sanat K. ; Sarma, D. D. (2010) Growth mechanism of cadmium sulfide nanocrystals Journal of Physical Chemistry Letters, 1 (1). pp. 304-308. ISSN 1948-7185
Full text not available from this repository.
Official URL: http://pubs.acs.org/doi/abs/10.1021/jz9001339
Related URL: http://dx.doi.org/10.1021/jz9001339
Abstract
We investigate the growth kinetics of CdS nanocrystals in the quantum confinement regime using time-resolved small-angle X-ray scattering. In contrast to earlier reports for similar systems, we establish that the growth kinetics in this case follows the Lifshitz-Slyozov-Wagner theory, for not only growth of the average diameter of the nanocrystals but also the time dependence of the size distribution and the temperature dependence of the rate constant. This is the first rigorous example of the coarsening process in the quantum confinement ( < 5 nm) regime. Ab initio studies for the reaction pathways provide a microscopic understanding of this finding.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Chemical Society. |
| Keywords: | Nanocrystal; Growth; Ostwald Ripening; Lifshitz-Slyozov-Wagner Theory; Coarsening |
| ID Code: | 46463 |
| Deposited On: | 04 Jul 2011 12:13 |
| Last Modified: | 04 Jul 2011 12:13 |
Repository Staff Only: item control page
