CdS nanocomposites assembled in porous phosphate heterostructures for fingerprint detection

被引：47

作者：

Algarra, M. ^{[2
]}

Jimenez-Jimenez, J. ^{[3
]}

Moreno-Tost, R. ^{[3
]}

Campos, B. B. ^{[1
]}

Esteves da Silva, J. C. G. ^{[1
]}

机构：

[1] Univ Porto, Fac Ciencias, Ctr Invest Quim CIQ UP, P-4169007 Oporto, Portugal

[2] Univ Porto, Fac Ciencias, Ctr Geol, P-4169007 Oporto, Portugal

[3] Univ Malaga, Fac Ciencias, Dept Quim Inorgan, E-29071 Malaga, Spain

来源：

OPTICAL MATERIALS | 2011年 / 33卷 / 06期

关键词：

Nanocomposites; CdS quantum dots; Porous phosphate heterostructures; Fluorescence; Fingerprint analysis; QUANTUM DOTS; NANOCRYSTALS; NANOPARTICLE; FINGERMARKS; OXIDE;

D O I：

10.1016/j.optmat.2011.01.017

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：893 / 898

页数：6

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