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Citation: WANG Yi-Lin, LU Jian-Ping, LAN Yu-Wei, TONG Zhang-Fa. Preparation and Characterization of Cu-Doped CdS Nanocrystals[J]. Chinese Journal of Applied Chemistry, ;2009, 26(3): 321-324. shu

Preparation and Characterization of Cu-Doped CdS Nanocrystals

1.
College of Chemistry and Chemical Engineering of Guangxi University, Nanning 530004

Corresponding author: WANG Yi-Lin,
Received Date: 14 February 2008
Available Online: 30 May 2008
Fund Project: 广西大学科研基金资助项目(X051108) (X051108)

Water-soluble Cu-doped CdS nanocrystals were prepared in aqueous solution with thioglycolic acid as stabilizer.ICP-AES,atomic force microscope were used to characterize the chemical composition and shape of the product,respectively.The excitation and emission spectra of Cu-doped CdS nanocrystals were investigated.The results show that the shape of Cd_0.99Cu_0.01S was rod and granule after refluxing for 2 h.The experiment demonstrates that the maximal emission wavelength of CdS nanocrystals was red-shifted after Cu was doped.Before refluxing,the λ_max of CdS was at 520 nm,but the λmax of Cd_0.99Cu_0.01S and Cd_0.98Cu_0.02S were red-shifted to 595 nm and 610 nm,respectively.The emission wavelength of CdS could be tuned by varying the content of Cu.
- Cu-doped,
- CdS,
- nanocrystals,
- fluorescence
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