Viswanatha, Ranjani and Santra, Pralay K and Dasgupta, Chandan and Sarma, D. D (2007) Growth Mechanism of Nanocrystals in Solution: ZnO, a Case Study. Physical Review Letters, 98 (25). pp. 255501-255504.
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Official URL: http://link.aps.org/doi/10.1103/PhysRevLett.98.255...
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.
|Subjects:||Material Science > Nanochemistry|
|Divisions:||Faculty of Engineering, Science and Mathematics > School of Chemistry|
|Deposited On:||28 Jan 2009 06:45|
|Last Modified:||28 Jan 2009 06:45|
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