Nano Archive

Study on Growth Kinetics of CdSe Nanocrystals with a New Model

Su, Huaipeng and Dixon, John David and Wang, Andrew Y. and Low, Jeremy and Xu, Jian and Wang, Jingkang (2010) Study on Growth Kinetics of CdSe Nanocrystals with a New Model. Nanoscale Research Letters, 5 (5). pp. 823-828.

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Abstract

A model which involves both bulk diffusion process and surface reaction process has been developed for describing the growth behaviour of nanoparticles. When the model is employed, hypothesising that either of the processes alone dominates the overall growth process is unnecessary. Conversely, the relative magnitude of contributions from both processes could be obtained from the model. Using this model in our system, the growth process of CdSe QDs demonstrated two different growth stages. During the first stage, the growth of CdSe QDs was dominated by bulk diffusion, whereas, neither the bulk diffusion process nor the surface reaction process could be neglected during the later stage. At last, we successfully modelled the Ostwald ripening of CdSe QDs with LSW theories.

Item Type:Article
Uncontrolled Keywords:Growth kinetics Semiconductor nanocrystals Model CdSe Ostwald ripening
Subjects:Material Science > Nanofabrication processes and tools
Physical Science > Nano objects
Physical Science > Quantum phenomena
ID Code:9008
Deposited By:Lesley Tobin
Deposited On:17 Aug 2010 16:39
Last Modified:17 Aug 2010 16:39

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