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Article: A facile synthesis of zinc blende ZnSe nanocrystals

TitleA facile synthesis of zinc blende ZnSe nanocrystals
Authors
KeywordsConventional methods
Depletion interactions
Electrostatic energies
Elemental selenium
Environment friendly
Issue Date2009
PublisherInstitute of Physics Publishing. The Journal's web site is located at http://www.iop.org/Journals/jpd
Citation
Journal Of Physics D: Applied Physics, 2009, v. 42 n. 12 How to Cite?
AbstractSince ZnSe is less toxic than cadmium based materials, ZnSe nanocrystal is a potential candidate for optoelectronic and fluorescent labelling applications. In this paper, colloidal ZnSe nanocrystals are successfully synthesized from zinc stearate and elemental selenium in a paraffin hot-matrix. The method is environment-friendly and of low cost compared with the conventional methods, which are generally toxic and expensive. The nanocrystal-nanocrystal interactions will significantly affect the optical properties and thus a detailed study is desirable. Here, we comprehensively study the interaction through the van der Waals interaction energy, electrostatic energy, steric energy and depletion interaction energy. The corresponding photoluminescence and absorption spectra show obvious excitonic features. Our results show that the nanocrystals can be converted to a water-dispersible system when the dominant emission is still from the excitonic recombination on ZnSe nanocrystals. © 2009 IOP Publishing Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/73556
ISSN
2015 Impact Factor: 2.772
2015 SCImago Journal Rankings: 0.682
ISI Accession Number ID
Funding AgencyGrant Number
Research Grant Council of the HK Special Administrative Region, ChinaHKU712108
University of Hong Kong10208294
Funding Information:

The authors acknowledge the support of the grant (#HKU712108) from the Research Grant Council of the HK Special Administrative Region, China, and the seed funding (#10208294) from the University of Hong Kong. They also acknowledge the help of M H Lo and the EM unit of the University of Hong Kong for TEM characterization.

References

 

DC FieldValueLanguage
dc.contributor.authorChoy, WCHen_HK
dc.contributor.authorXiong, Sen_HK
dc.contributor.authorSun, Yen_HK
dc.date.accessioned2010-09-06T06:52:29Z-
dc.date.available2010-09-06T06:52:29Z-
dc.date.issued2009en_HK
dc.identifier.citationJournal Of Physics D: Applied Physics, 2009, v. 42 n. 12en_HK
dc.identifier.issn0022-3727en_HK
dc.identifier.urihttp://hdl.handle.net/10722/73556-
dc.description.abstractSince ZnSe is less toxic than cadmium based materials, ZnSe nanocrystal is a potential candidate for optoelectronic and fluorescent labelling applications. In this paper, colloidal ZnSe nanocrystals are successfully synthesized from zinc stearate and elemental selenium in a paraffin hot-matrix. The method is environment-friendly and of low cost compared with the conventional methods, which are generally toxic and expensive. The nanocrystal-nanocrystal interactions will significantly affect the optical properties and thus a detailed study is desirable. Here, we comprehensively study the interaction through the van der Waals interaction energy, electrostatic energy, steric energy and depletion interaction energy. The corresponding photoluminescence and absorption spectra show obvious excitonic features. Our results show that the nanocrystals can be converted to a water-dispersible system when the dominant emission is still from the excitonic recombination on ZnSe nanocrystals. © 2009 IOP Publishing Ltd.en_HK
dc.languageengen_HK
dc.publisherInstitute of Physics Publishing. The Journal's web site is located at http://www.iop.org/Journals/jpden_HK
dc.relation.ispartofJournal of Physics D: Applied Physicsen_HK
dc.subjectConventional methods-
dc.subjectDepletion interactions-
dc.subjectElectrostatic energies-
dc.subjectElemental selenium-
dc.subjectEnvironment friendly-
dc.titleA facile synthesis of zinc blende ZnSe nanocrystalsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0022-3727&volume=42&issue=12 article no. 125410&spage=&epage=&date=2009&atitle=A+facile+synthesis+of+zinc+blende+ZnSe+nanocrystalsen_HK
dc.identifier.emailChoy, WCH:chchoy@eee.hku.hken_HK
dc.identifier.authorityChoy, WCH=rp00218en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1088/0022-3727/42/12/125410en_HK
dc.identifier.scopuseid_2-s2.0-70149085803en_HK
dc.identifier.hkuros169617en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-70149085803&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume42en_HK
dc.identifier.issue12en_HK
dc.identifier.isiWOS:000266639300048-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridChoy, WCH=7006202371en_HK
dc.identifier.scopusauthoridXiong, S=55222711500en_HK
dc.identifier.scopusauthoridSun, Y=8527705700en_HK

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