Strutural and optical approach of CdS@ZnS core-shell system
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2012-05-21
Autores
Raubach, Cristiane W.
de Santana, Yuri V. B.
Ferrer, Mateus M.
Longo, Valeria M. [UNESP]
Varela, José Arana [UNESP]
Avansi, Waldir [UNESP]
Buzolin, Prescila G. C. [UNESP]
Sambrano, Julio R. [UNESP]
Longo, Elson [UNESP]
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Elsevier B.V.
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An intense red-green photoluminescence (PL) emission was observed, at room temperature, in a CdS@ZnS core-shell system. The PL intensity emission of CdS@ZnS core-shell was strongly superior from that observed in individual CdS and ZnS nanoparticles. In this sense, we reported a comprehensive experimental and theoretical study of the optical behavior of CdS and ZnS nanoparticles (NPs), and CdS@ZnS core-shell system in the light the structural order-disorder conception. We also propose a model were the core and shell interface leads to favorable condition that triggers PL emission in CdS@ZnS core-shell. (C) 2012 Elsevier B. V. All rights reserved.
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Chemical Physics Letters. Amsterdam: Elsevier B.V., v. 536, p. 96-99, 2012.