Growth mechanism of nanocrystals in solution: ZnO, a case study
arXiv:0706.3876 · doi:10.1103/PhysRevLett.98.255501
Abstract
We investigate the mechanism of growth of nanocrystals from solution using the case of ZnO. Spanning a wide range of values of the parameters, such as the temperature and the reactant concentration, that control the growth, our results establish a qualitative departure from the widely accepted diffusion controlled coarsening (Ostwald ripening) process quantified in terms of the Lifshitz-Slyozov-Wagner theory. Further, we show that these experimental observations can be qualitatively and quantitatively understood within a growth mechanism that is intermediate between the two well-defined limits of diffusion control and kinetic control.
10 pages, 4 figures
References in corpus (5)
- Theory of Phase Ordering Kinetics
- Evolution of the electronic structure with size in II-VI semiconductor nanocrystals
- Optical absorption and photoluminescence spectroscopy of the growth of silver nanoparticles
- Electronic structure of and Quantum size effect in III-V and II-VI semiconducting nanocrystals using a realistic tight binding approach
- Realistic Tight Binding Model for the Electronic Structure of II-VI Semiconductors