CdS nanocomposites assembled in porous phosphate heterostructures for fingerprint detection

• Type: Article in International Scientific Journal
• Date: 2011

Authors

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

Journal

Title: Optical Materials

Vol. 33 No. 6

Pages: 893-898

ISSN: 0925-3467

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 40 Citations

Scopus - 42 Citations

Scientific classification

FOS: Engineering and technology > Materials engineering

CORDIS: Physical sciences > Chemistry

Other information

Authenticus ID: P-002-SRG

DOI: 10.1016/j.optmat.2011.01.017

Abstract (EN): A fluorescent hybrid cadmium sulfide quantum dots (QDs) nanocomposites assembled in a porous phosphate heterostructures (PPH) functionalized with mercaptopropyl (PPH-SH) and propionitrile (PPH-CN) where synthesised in water and show high stability. Both materials, show fluorescence in the 450700 nm wavelength range but the PPH-SH-CdS is about five times more fluorescent than PPH-CN-CdS. The maximum emission wavelengths of the resulting materials are 576 nm (PPH-SH-CdS) and 616 nm (PPH-CN-CdS) and show Stokes shifts higher than 300 nm. The nanocomposites were characterized by TEM. EDS, FT-IR, XRD and fluorescence. These materials are suitable for fingerprint analysis.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6