Atomic Resolution Monitoring of Cation Exchange in CdSe-PbSe Heteronanocrystals during Epitaxial Solid–Solid–Vapor Growth

[Image: see text] Here, we show a novel solid–solid–vapor (SSV) growth mechanism whereby epitaxial growth of heterogeneous semiconductor nanowires takes place by evaporation-induced cation exchange. During heating of PbSe-CdSe nanodumbbells inside a transmission electron microscope (TEM), we observe...

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Autores principales: Yalcin, Anil O., Fan, Zhaochuan, Goris, Bart, Li, Wun-Fan, Koster, Rik S., Fang, Chang-Ming, van Blaaderen, Alfons, Casavola, Marianna, Tichelaar, Frans D., Bals, Sara, Van Tendeloo, Gustaaf, Vlugt, Thijs J. H., Vanmaekelbergh, Daniël, Zandbergen, Henny W., van Huis, Marijn A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2014
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4055051/
https://www.ncbi.nlm.nih.gov/pubmed/24844280
http://dx.doi.org/10.1021/nl501441w
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author Yalcin, Anil O.
Fan, Zhaochuan
Goris, Bart
Li, Wun-Fan
Koster, Rik S.
Fang, Chang-Ming
van Blaaderen, Alfons
Casavola, Marianna
Tichelaar, Frans D.
Bals, Sara
Van Tendeloo, Gustaaf
Vlugt, Thijs J. H.
Vanmaekelbergh, Daniël
Zandbergen, Henny W.
van Huis, Marijn A.
author_facet Yalcin, Anil O.
Fan, Zhaochuan
Goris, Bart
Li, Wun-Fan
Koster, Rik S.
Fang, Chang-Ming
van Blaaderen, Alfons
Casavola, Marianna
Tichelaar, Frans D.
Bals, Sara
Van Tendeloo, Gustaaf
Vlugt, Thijs J. H.
Vanmaekelbergh, Daniël
Zandbergen, Henny W.
van Huis, Marijn A.
author_sort Yalcin, Anil O.
collection PubMed
description [Image: see text] Here, we show a novel solid–solid–vapor (SSV) growth mechanism whereby epitaxial growth of heterogeneous semiconductor nanowires takes place by evaporation-induced cation exchange. During heating of PbSe-CdSe nanodumbbells inside a transmission electron microscope (TEM), we observed that PbSe nanocrystals grew epitaxially at the expense of CdSe nanodomains driven by evaporation of Cd. Analysis of atomic-resolution TEM observations and detailed atomistic simulations reveals that the growth process is mediated by vacancies.
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spelling pubmed-40550512014-06-13 Atomic Resolution Monitoring of Cation Exchange in CdSe-PbSe Heteronanocrystals during Epitaxial Solid–Solid–Vapor Growth Yalcin, Anil O. Fan, Zhaochuan Goris, Bart Li, Wun-Fan Koster, Rik S. Fang, Chang-Ming van Blaaderen, Alfons Casavola, Marianna Tichelaar, Frans D. Bals, Sara Van Tendeloo, Gustaaf Vlugt, Thijs J. H. Vanmaekelbergh, Daniël Zandbergen, Henny W. van Huis, Marijn A. Nano Lett [Image: see text] Here, we show a novel solid–solid–vapor (SSV) growth mechanism whereby epitaxial growth of heterogeneous semiconductor nanowires takes place by evaporation-induced cation exchange. During heating of PbSe-CdSe nanodumbbells inside a transmission electron microscope (TEM), we observed that PbSe nanocrystals grew epitaxially at the expense of CdSe nanodomains driven by evaporation of Cd. Analysis of atomic-resolution TEM observations and detailed atomistic simulations reveals that the growth process is mediated by vacancies. American Chemical Society 2014-05-20 2014-06-11 /pmc/articles/PMC4055051/ /pubmed/24844280 http://dx.doi.org/10.1021/nl501441w Text en Copyright © 2014 American Chemical Society Terms of Use (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html)
spellingShingle Yalcin, Anil O.
Fan, Zhaochuan
Goris, Bart
Li, Wun-Fan
Koster, Rik S.
Fang, Chang-Ming
van Blaaderen, Alfons
Casavola, Marianna
Tichelaar, Frans D.
Bals, Sara
Van Tendeloo, Gustaaf
Vlugt, Thijs J. H.
Vanmaekelbergh, Daniël
Zandbergen, Henny W.
van Huis, Marijn A.
Atomic Resolution Monitoring of Cation Exchange in CdSe-PbSe Heteronanocrystals during Epitaxial Solid–Solid–Vapor Growth
title Atomic Resolution Monitoring of Cation Exchange in CdSe-PbSe Heteronanocrystals during Epitaxial Solid–Solid–Vapor Growth
title_full Atomic Resolution Monitoring of Cation Exchange in CdSe-PbSe Heteronanocrystals during Epitaxial Solid–Solid–Vapor Growth
title_fullStr Atomic Resolution Monitoring of Cation Exchange in CdSe-PbSe Heteronanocrystals during Epitaxial Solid–Solid–Vapor Growth
title_full_unstemmed Atomic Resolution Monitoring of Cation Exchange in CdSe-PbSe Heteronanocrystals during Epitaxial Solid–Solid–Vapor Growth
title_short Atomic Resolution Monitoring of Cation Exchange in CdSe-PbSe Heteronanocrystals during Epitaxial Solid–Solid–Vapor Growth
title_sort atomic resolution monitoring of cation exchange in cdse-pbse heteronanocrystals during epitaxial solid–solid–vapor growth
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4055051/
https://www.ncbi.nlm.nih.gov/pubmed/24844280
http://dx.doi.org/10.1021/nl501441w
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