Study on growth kinetics of CdSe nanocrystals with a new model

Huaipeng Su, John David Dixon, Andrew Y. Wang, Jeremy Low, Jian Xu, Jingkang Wang

Research output: Contribution to journalArticle

7 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)823-828
Number of pages6
JournalNanoscale Research Letters
Volume5
Issue number5
DOIs
StatePublished - May 1 2010

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

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