Study on Growth Kinetics of CdSe Nanocrystals with a New Model

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 r...

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Detalles Bibliográficos
Autores principales: Su, Huaipeng, Dixon, JohnDavid, Wang, Andrew Y, Low, Jeremy, Xu, Jian, Wang, Jingkang
Formato: Texto
Lenguaje:English
Publicado: Springer 2010
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2894121/
https://www.ncbi.nlm.nih.gov/pubmed/20672112
http://dx.doi.org/10.1007/s11671-010-9568-3
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author Su, Huaipeng
Dixon, JohnDavid
Wang, Andrew Y
Low, Jeremy
Xu, Jian
Wang, Jingkang
author_facet Su, Huaipeng
Dixon, JohnDavid
Wang, Andrew Y
Low, Jeremy
Xu, Jian
Wang, Jingkang
author_sort Su, Huaipeng
collection PubMed
description 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.
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spelling pubmed-28941212010-07-28 Study on Growth Kinetics of CdSe Nanocrystals with a New Model Su, Huaipeng Dixon, JohnDavid Wang, Andrew Y Low, Jeremy Xu, Jian Wang, Jingkang Nanoscale Res Lett Nano Express 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. Springer 2010-03-25 /pmc/articles/PMC2894121/ /pubmed/20672112 http://dx.doi.org/10.1007/s11671-010-9568-3 Text en Copyright © 2010 The Author(s) https://creativecommons.org/licenses/by-nc/4.0/ This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
spellingShingle Nano Express
Su, Huaipeng
Dixon, JohnDavid
Wang, Andrew Y
Low, Jeremy
Xu, Jian
Wang, Jingkang
Study on Growth Kinetics of CdSe Nanocrystals with a New Model
title Study on Growth Kinetics of CdSe Nanocrystals with a New Model
title_full Study on Growth Kinetics of CdSe Nanocrystals with a New Model
title_fullStr Study on Growth Kinetics of CdSe Nanocrystals with a New Model
title_full_unstemmed Study on Growth Kinetics of CdSe Nanocrystals with a New Model
title_short Study on Growth Kinetics of CdSe Nanocrystals with a New Model
title_sort study on growth kinetics of cdse nanocrystals with a new model
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2894121/
https://www.ncbi.nlm.nih.gov/pubmed/20672112
http://dx.doi.org/10.1007/s11671-010-9568-3
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