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Abstract: We investigate the mechanism of growth of nanocrystals from solution usingthe case of ZnO. Spanning a wide range of values of the parameters, such as thetemperature and the reactant concentration, that control the growth, ourresults establish a qualitative departure from the widely accepted diffusioncontrolled coarsening Ostwald ripening process quantified in terms of theLifshitz-Slyozov-Wagner theory. Further, we show that these experimentalobservations can be qualitatively and quantitatively understood within a growthmechanism that is intermediate between the two well-defined limits of diffusioncontrol and kinetic control.



Author: Ranjani Viswanatha, Pralay K. Santra, Chandan Dasgupta, D. D. Sarma

Source: https://arxiv.org/







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