Please use this identifier to cite or link to this item: https://doi.org/10.1021/jp0616011
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dc.titleCore - Shell and hollow nanocrystal formation via small molecule surface photodissociation; Ag@Ag2Se as an example
dc.contributor.authorTan, H.
dc.contributor.authorLi, S.
dc.contributor.authorFan, W.Y.
dc.date.accessioned2014-10-16T08:23:55Z
dc.date.available2014-10-16T08:23:55Z
dc.date.issued2006-08-17
dc.identifier.citationTan, H., Li, S., Fan, W.Y. (2006-08-17). Core - Shell and hollow nanocrystal formation via small molecule surface photodissociation; Ag@Ag2Se as an example. Journal of Physical Chemistry B 110 (32) : 15812-15816. ScholarBank@NUS Repository. https://doi.org/10.1021/jp0616011
dc.identifier.issn15206106
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/93401
dc.description.abstractMetallic Ag nanoparticles have been converted to Ag2Se nanoparticles at ambient temperature and open atmosphere by UV photodissociation of adsorbed CSe2 on the Ag core surface. The photolysis could be prevented at any stage yielding Ag@Ag2Se core - shell structures of different thickness. Depending on the initial Ag nanoparticle size, either hollow or filled nanocrystals of Ag2Se could be prepared. The Kirkendall effect has been proposed to account for the formation of hollow nanoparticles. A coated-sphere Drude model has been used to explain the redshift of the Ag plasmon band as a function of the Ag 2Se shell thickness as well as to provide the first estimates of the wavelength-dependent dielectric function of Ag2Se. This photochemical method might be especially promising for carrying out a direct room-temperature phototransformation of metallic into semiconductor nanostructures already assembled on surface templates. © 2006 American Chemical Society.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1021/jp0616011
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentCHEMISTRY
dc.description.doi10.1021/jp0616011
dc.description.sourcetitleJournal of Physical Chemistry B
dc.description.volume110
dc.description.issue32
dc.description.page15812-15816
dc.description.codenJPCBF
dc.identifier.isiut000239656100028
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