Synthesis and Characterization of Eu3+-Doped CdS Quantum Dots by a Single-Step Aqueous Method

Eu3+-doped CdS quantum dots (QDs) are successfully synthesized through a straightforward singlepot process in aqueous solution using thioglycolic acid as the capping ligand. The structure, shape, and spectral properties of the QDs are investigated. The obtained CdS:Eu3+ QDs exhibit cubic structures with good crystallinity and approximately sphere-like shapes about 4 nm in diameter. The CdS QDs manifest a broadband emission peak at 600 nm and enhanced Photoluminescence (PL) emission intensity after doping with Eu3+ ions. Given the strong PL intensity and good chromaticity of the sulfide-based QDs, they have potential use in doping rare-earth ions.

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Synthesis and characterization of CdS quantum dots in polystyrene microbeads

Journal of Materials Chemistry ◽

10.1039/b412317d ◽

2005 ◽

Cited By ~ 8

Author(s):

Yang Li ◽

Eric Chun Yeung Liu ◽

Nigel Pickett ◽

Peter J. Skabara ◽

Siobhan S. Cummins ◽

...

Keyword(s):

Quantum Dots ◽

Synthesis And Characterization ◽

Cds Quantum Dots

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Potential use of capillary zone electrophoresis in size characterization of quantum dots for environmental studies

TrAC Trends in Analytical Chemistry ◽

10.1016/j.trac.2010.10.005 ◽

2011 ◽

Vol 30 (1) ◽

pp. 113-122 ◽

Cited By ~ 24

Author(s):

David T.R. Stewart ◽

Mary Dawn Celiz ◽

Glorimar Vicente ◽

Luis A. Colón ◽

Diana S. Aga

Keyword(s):

Quantum Dots ◽

Capillary Zone Electrophoresis ◽

Environmental Studies ◽

Zone Electrophoresis ◽

Capillary Zone ◽

Size Characterization ◽

Potential Use

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Synthesis and characterization of CdS quantum dots–polystyrene composite

Chemical Physics Letters ◽

10.1016/s0009-2614(00)00990-8 ◽

2000 ◽

Vol 329 (1-2) ◽

pp. 168-172 ◽

Cited By ~ 49

Author(s):

Dragana Šajinović ◽

Zoran V Šaponjić ◽

Nikola Cvjetićanin ◽

Milena Marinović-Cincović ◽

Jovan M Nedeljković

Keyword(s):

Quantum Dots ◽

Synthesis And Characterization ◽

Cds Quantum Dots

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Synthesis and Characterization of White-Emitting CdS Quantum Dots Stabilized with Polyethylenimine

The Journal of Physical Chemistry C ◽

10.1021/jp108561u ◽

2010 ◽

Vol 114 (51) ◽

pp. 22478-22486 ◽

Cited By ~ 47

Author(s):

Oleksandra E. Rayevska ◽

Galyna Ya. Grodzyuk ◽

Volodymyr M. Dzhagan ◽

Oleksandr L. Stroyuk ◽

Stepan Ya. Kuchmiy ◽

...

Keyword(s):

Quantum Dots ◽

Synthesis And Characterization ◽

Cds Quantum Dots

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Synthesis and photoluminescence characterization of dendrimer-encapsulated CdS quantum dots

Colloids and Surfaces A Physicochemical and Engineering Aspects ◽

10.1016/j.colsurfa.2012.06.035 ◽

2012 ◽

Vol 411 ◽

pp. 12-17 ◽

Cited By ~ 13

Author(s):

Daigo Yamamoto ◽

Tomohiro Koshiyama ◽

Satoshi Watanabe ◽

Minoru T. Miyahara

Keyword(s):

Quantum Dots ◽

Cds Quantum Dots

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Synthesis of CdS Quantum Dots for Detection of Copper (II) Using Fluorescence Spectroscopy

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.306-307.1334 ◽

2011 ◽

Vol 306-307 ◽

pp. 1334-1337 ◽

Cited By ~ 1

Author(s):

Meng Zhang ◽

Fu Wei Wan ◽

Shen Guang Ge ◽

Jing Hua Yu

Keyword(s):

Quantum Dots ◽

Fluorescence Intensity ◽

Colloidal Solution ◽

Low Cost ◽

Aqueous System ◽

Cds Quantum Dots ◽

High Quality ◽

Cds Qds ◽

Partical Size

We report the synthesis and characterization of a low-cost high-quality CdS quantum dots (QDs).The synthesis was performed in aqueous system. The aqueous CdS colloidal solution was prepared using thioglycollic acid as a capping agent. Zetasizer Nano ZS (Malvern, UK) was employed to characterize the partical size of CdS QDs. The UV-vis and photoluminescence (PL) spectra of samples were systematically characterized (the full width at half maximum was 38 nm). The maximum photoluminescence (PL) quantum yield (QY) was as high as 68.5 %. The fluorescence intensity was enhanced by copper (II). The relative fluorescence intensity was linear to copper (II) concentration over the range 4.0 ×10-6 - 2.8×10-5 g mL-1. The regression equation was ΔIF= 59.07+ 90.57c (c / μg mL-1). The highly monodispersed CdS QDs could be used in many fields.

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