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

• Type: Article in International Scientific Journal
• Date: 2013

Authors

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

Journal

Title: Surface and Interface Analysis

Vol. 45

Pages: 612-618

ISSN: 0142-2421

Publisher: Wiley-Blackwell

Indexing

ISI Web of Knowledge - 16 Citations

ISI Web of Science

Scopus - 17 Citations

Scientific classification

FOS: Natural sciences > Chemical sciences

CORDIS: Physical sciences > Chemistry

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7