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Proceedings Paper

Synthesis of highly luminescent Cd(Se,S) alloy nanocrystals
Author(s): Young-Kuk Kim; Young-Sang Cho; Kookchae Chung; Chul-Jin Choi
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Paper Abstract

Highly luminescent semiconductor nanocrystals with graded band gap were synthesized using hot injection method. The band gap of nanocrystals were controlled by gradual incorporation of sulfur to CdSe nanocrystals by applying severely asymmetric composition of reactants ([Cd]/[Se,S]>>1). The maximum emission wavelength of the grown nanocrystals was varied by controlling the concentration ratio of VI group element, ie. Se and S. A green light was emitted from Cd(Se,S) nanocrystals with [Se]:[S]=1:3 in the reactant mixture and the maximum quantum yield measured by comparing with Rhodamine 6G exceeded 80%

Paper Details

Date Published: 11 September 2010
PDF: 6 pages
Proc. SPIE 7755, Nanophotonic Materials VII, 77550D (11 September 2010); doi: 10.1117/12.860333
Show Author Affiliations
Young-Kuk Kim, Korea Institute of Materials Science (Korea, Republic of)
Young-Sang Cho, Korea Institute of Materials Science (Korea, Republic of)
Kookchae Chung, Korea Institute of Materials Science (Korea, Republic of)
Chul-Jin Choi, Korea Institute of Materials Science (Korea, Republic of)


Published in SPIE Proceedings Vol. 7755:
Nanophotonic Materials VII
Stefano Cabrini; Taleb Mokari, Editor(s)

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