Preparation and Characterization of CdSe Nanoparticles Prepared by Using Ultrasonic Irradiation

Abstract:

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CdSe nanoparticles with average particles size of ~ 3.4 nm were successfully prepared by the sonochemical reduction of a mixed solution of CdCl2, Na2SeSO3 and CH2CH2OH)2NH at room temperature. CdSe nanoparticles characterized by TEM, XPS and XRD analysis revealed the formation of high purity cubic phase CdSe nanoparticles with lattice constant of a=6.415Å. CdSe nanoparticles showed relatively large range of particle size distribution from 20 to 50 nm as the sonication time increased. UV-Vis absorption spectra showed a red-shift in the wavelength region of 545-590 nm as increasing sonication time due to the gradual growth of CdSe nanoparticles in the solution. This paper will mainly present the effects of ultrasonic irradiation on the formation and properties of CdSe nanoparticles.

Info:

Periodical:

Key Engineering Materials (Volumes 336-338)

Edited by:

Wei Pan and Jianghong Gong

Pages:

2034-2036

DOI:

10.4028/www.scientific.net/KEM.336-338.2034

Citation:

M. S. Sung, Y. B. Lee, Y. S. Kim, Y. M. Rhyim, J. C. Kim, I. B. Kim, Y. D. Kim, "Preparation and Characterization of CdSe Nanoparticles Prepared by Using Ultrasonic Irradiation", Key Engineering Materials, Vols. 336-338, pp. 2034-2036, 2007

Online since:

April 2007

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$35.00

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