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Please use this identifier to cite or link to this item: http://repositorio.ufba.br/ri/handle/ri/17277

Title: Synthesis of CdS nano-spheres by a simple and fast sonochemical method at room temperature
Other Titles: Materials Letters
Authors: Lopes, Paula Aparecida Lima
Santos, Maurício Brandão
Mascarenhas, Artur José Santos
Silva, Luciana Almeida
Keywords: CdS;Sonochemical method;Nano-spheres;Semiconductors
Issue Date: 2014
Abstract: Nano-spheres of hexagonal CdS were prepared by a sonochemical method using CdCl2 and Na2S2O3 as precursors, with different molar ratios of cadmium and sulfur in starting solutions, in ethylene glycol and cetyltrimethylammonium bromide (CTAB) as a surfactant. The XRD patterns for all samples presented the set of peaks characteristic of CdS in hexagonal phase. The crystallite size decreases as the sulfur content increased in the starting solution as a consequence of the quick release of sulfide ions trapped in the micelles formed by the CTAB surfactant, which controls the CdS nanoparticles growth. The diffuse reflectance spectroscopy (DRS) results have shown that it is possible to tune the emission of visible light of the CdS semiconductor changing only the starting Cd:S ratios in this synthesis procedure.
Description: Texto completo: acesso restrito. p.111–113
URI: http://repositorio.ufba.br/ri/handle/ri/17277
ISSN: 0167-577X
Appears in Collections:Artigos Publicados em Periódicos (Quimica)

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