Solid luminescent CdSe-thiolated porous phosphate heterostructures. Application in fingermark detection in different surfaces

• Tipo: Artigo em Revista Científica Internacional
• Data: 2013

Autores

algarra, m (Autor) Outra; jimenez-jimenez, j (Autor) Outra; miranda, ms (Autor) FCUP; campos, bb (Autor) Outra; moreno-tost, r (Autor) Outra; rodriguez-castellon, e (Autor) Outra; da silva, jcge (Autor) FCUP

Revista

Título: Surface and Interface Analysis

Vol. 45

Páginas: 612-618

ISSN: 0142-2421

Editora: Wiley-Blackwell

Indexação

ISI Web of Knowledge - 16 Citações

ISI Web of Science

Scopus - 17 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Química

CORDIS: Ciências Físicas > Química

Outras Informações

ID Authenticus: P-005-313

DOI: 10.1002/sia.5100

Abstract (EN): A fluorescent hybrid material (PPH-S-CdSe), which comprises cadmium selenide sulphide nanoparticles assembled onto thiol functionalised porous phosphate heterostructures (PPH-SH), was synthesised in aqueous media. This material presents a high stability towards photo-degradation. The obtained nanocomposite was characterised by various techniques such as Fourier transform infrared spectroscopy, energy dispersive X-ray, transmission electron microscopy (TEM), X-ray diffraction, X-ray photoelectron spectroscopy and fluorescence spectroscopy. This fluorescent material showed a red emission at 576nm combined with other at 473nm, explained as different CdS0.42Se0.58 nanoparticles size, supported by TEM images. It was suitable for latent fingermark analysis in a wide range of surfaces. Because of its sensitivity and low cost, it is an actual alternative to conventional powdering materials. Copyright (C) 2012 John Wiley & Sons, Ltd.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7