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https://repositorio.ufba.br/handle/ri/17277
metadata.dc.type: | Artigo de Periódico |
Título : | Synthesis of CdS nano-spheres by a simple and fast sonochemical method at room temperature |
Otros títulos : | Materials Letters |
Autor : | Lopes, Paula Aparecida Lima Santos, Maurício Brandão Mascarenhas, Artur José Santos Silva, Luciana Almeida |
metadata.dc.creator: | Lopes, Paula Aparecida Lima Santos, Maurício Brandão Mascarenhas, Artur José Santos Silva, Luciana Almeida |
Resumen : | 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. |
Palabras clave : | CdS Sonochemical method Nano-spheres Semiconductors |
metadata.dc.rights: | Acesso Aberto |
URI : | http://repositorio.ufba.br/ri/handle/ri/17277 |
Fecha de publicación : | 2014 |
Aparece en las colecciones: | Artigo Publicado em Periódico (Química) |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
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Paula A.L. Lopes.pdf | 627,46 kB | Adobe PDF | Visualizar/Abrir |
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