Optical Characterization of CdS Quantum Dots Nanoparticles Dispersed in Clays

• Tipo: Artigo em Revista Científica Internacional
• Data: 2012

Autores

Manuel Algarra (Autor) Outra; Ana Reis (Autor) Outra; Iulius Bobos (Autor) FCUP; Bruno B Campos (Autor) Outra; Jose Jimenez Jimenez (Autor) Outra; Ramon Moreno Tost (Autor) Outra; Joaquim C G E Esteves da Silva (Autor) FCUP

Revista

Título: Journal of Dispersion Science and Technology

Vol. 33

Páginas: 1139-1143

ISSN: 0193-2691

Editora: Taylor & Francis

Indexação

ISI Web of Knowledge - 1 Citação

Scopus - 1 Citação

Classificação Científica

FOS: Ciências exactas e naturais > Química

Outras Informações

ID Authenticus: P-002-FPS

DOI: 10.1080/01932691.2011.599238

Abstract (EN): Synthesis, characterization, and the optical behavior of CdS quantum dots nanoparticles were studied confined in clays. An alternative synthesis approach in different natural clays K-10 bentonite, Na-montemorillonite, halloysite, and saponite was carried out. The composite materials were characterized by XRD and FTIR spectroscopy, energy dispersive, scanning, and transmission electron microscopy. After CdS-QDs formation, the synthesized materials became fluorescent with emission wavelengths (average and standard deviation of the maximum wavelength; full width of half maximum): K-10 bentonite-CdS (590 +/- 5 nm; 183 nm); Na-montmorillonite-CdS (550 +/- 3 nm; 219 nm); saponite-CdS (550 +/- 5 nm; 219 nm), and halloysite-CdS (590 +/- 8 nm; 185 nm). (Supplemental materials are available for this article. Go to the publisher's online edition of the Journal of Dispersion Science and Technology to view the free supplemental file.)

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 5