Synthesis and Characterization of CdSe Nanocrystal Quantum Dots by Solution-Liquid-Solid Method

Hai Yun Chen; Yu Kai Shan; Yu Yue Qin; Yong Ming Chuan; Ming Long Yuan

doi:10.4028/www.scientific.net/AMR.750-752.983

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 750-752Synthesis and Characterization of CdSe Nanocrystal...

Synthesis and Characterization of CdSe Nanocrystal Quantum Dots by Solution-Liquid-Solid Method

Abstract:

The present work describes a solution-liquid-solid (SLS) synthesis route for the preparation of CdSe nanocrystal quantum dots using the low-melting-point Bi nanoparticles as catalysts. UV-vis absorption spectra were used to determine the growth of CdSe cluster. The shape and size distribution of the CdSe QDs were determined by analysis of Transmission electron microcopy (TEM) images. A peak wavelength of 399nm in the absorption spectra on day 5 indicated that the CdSe cluster formed. TEM micrographs showed that CdSe QDs had a relatively narrow distribution of QD size, and the diameter of CdSe QDs was about 4 nm. Our preliminary results illustrated that smaller size of CdSe QDs could be prepared by SLS method and it was small enough for bioimaging applications.

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Periodical:

Advanced Materials Research (Volumes 750-752)

Pages:

983-986

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.750-752.983

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Online since:

August 2013

Authors:

Hai Yun Chen, Yu Kai Shan, Yu Yue Qin, Yong Ming Chuan, Ming Long Yuan*

Keywords:

CdSe Quantum Dots, Characterization, Solution-Liquid-Solid, Synthesis

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