Preparation and Optical Property of Co2+: CdS Nanocrystals
Co doping CdS nanocrystals were synthesized in aqueous solution using mercaptoacetic acid as stabilizer. The prepared nanocrystals were examined using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), fourier transform infrared (FTIR) and UV-vis absorption spectroscopy (ABS). The cubic zinc blende nanocrystals were determined and the sizes were estimated by XRD. The compositions of the nanocrystals was confirmed by XPS, the resultes indiacated that Co2+ existed in the as-prepared nanocrystal. FTIR indicated that the doped as well as undoped nanocrystals were capped by mercaptoacetic acid molecules. Ultraviolet-visible absorption spectra indicated that Co2+ is located at the surface of the nanocrysatles.
CdS nanocrystals doped absorption
S.Y. Chen P. Yu J. J. Zhang Y. L. Li R. S. Xie J. G. Zhu D. Q. Xiao M. Jiang
College of Materials Science and Engineering,Sichuan University,Chengdu 610064,China
国际会议
西安
英文
72-75
2009-08-23（万方平台首次上网日期，不代表论文的发表时间）