CJCU

Chem. J. Chinese Universities ›› 1995, Vol. 16 ›› Issue (S1): 29.

• Articles • Previous Articles     Next Articles

The Effects of Methylene Blue on the Optical Properties of Nanometer-sized CdS Organosol

WU Xiao-chun1, ZOU Bing-suo1, XU Ji-ren1, TANG Guo-jing2, ZHANG Gui-lan2, CHEN Wen-ju2   

  1. 1. The Institute of Physics, Chinese Academy of Sciences, Beijing, 100080, P. R. China;
    2. The Modern Institute of Optics, Nankai University, Tianjin, 300071, P. R. China
  • Received:1995-08-03 Online:1995-12-31 Published:1995-12-31
  • Supported by:

    National Natural Science Foundation of China

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Abstract:

The inverse micelle system of nanometer-sized CdS doped with Methylene Blue(MB) was synthesized and characterized by using absorption and fluorescence spectra. The results show that MB molecules were absorbed onto the surface of CdS nanoparticles and interacted with surfactants when its concentration was lower than 4×10-6 mol/L. From the comparison of their spectra, MB molecules by adsorption have a strong quenched fluorescence emission of CdS nanoparticles with surface defect states. All responses and main mechanism are ascribed to the charge transfer between the CdS organosol and Methylene Blue molecules.

Key words: Nanometer-sizvd CdS organosol, Methylenw Blue, Optical propvrties

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