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Water-soluble multicolored fluorescent CdTe quantum dots: Synthesis and application for fingerprint developing.

PubMed
Authors: Liu J, Shi Z, Yu Y, Yang R, Zuo S

Year

2010

Paper ID

12440

Status

Peer-reviewed

Abstract Read

~2 min

Abstract Words

123

Citations

98

Abstract

Multicolored water-soluble fluorescent CdTe quantum dots (QDs) have been synthesized by using Te, NaBH(4), and CdCl(2) as precursors and several mercapto-based compounds as modifiers. The effects of ratio of the precursor, type of modifier, refluxing time and initial pH value of the reaction on fluorescence intensity of CdTe QDs have been studied. XRD, HRTEM and fluorescence spectra were employed to characterize these samples. It is found that CdTe QDs with a crystalline size of 3-4nm are homogeneously embedded in the organic matrix. The maximum fluorescence emission peaks of CdTe QDs solutions shifted from 525nm to 591nm according to the refluxing time. The fingerprint details on the surface of smooth objects were clearly developed with CdTe QDs solution under irradiation of UV lights.

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  • Multicolored water-soluble fluorescent CdTe quantum dots (QDs) have been synthesized by using Te, NaBH(4), and CdCl(2) as precursors and several mercapto-based compounds as...

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References & Citation Signals

[1] DOI https://doi.org/10.1016/j.jcis.2009.10.061 [2] Publisher https://pubmed.ncbi.nlm.nih.gov/19939398/

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