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Chem. J. Chinese Universities ›› 2002, Vol. 23 ›› Issue (12): 2360.

• Articles • Previous Articles     Next Articles

UV-Vis Absorption Study of Vacuum Vapor Deposited Lead Phthalocyanine and Vanadyl Phthalocyanine Nanometer Multilayered-film

RUI Xiang-Xin1, JI Zhen-Guo1, WANG Long-Cheng1, WANG Mang1, Yasukiyo Ueda2   

  1. 1. State Key Laboratory for Silicon Materials, Zhejiang University, Hangzhou 310027, China;
    2. Faculty of Engineering, Kobe University, Rokko, Nada, Kobe 657-8501, Japan
  • Received:2001-11-13 Online:2002-12-24 Published:2002-12-24

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Abstract: Nanometer multilayer composite films of lead phthalocyanine(PbPc) and vanadyl phthalocyanine(VOPc) were prepared by vacuum vapor deposition. It is found that a new absorption peak around 940 nm appeared as discovered by UV-visible absorption analysis. Compared to the Q bands absorption of single component films of VOPc and PbPc, the new peak is red-shifted. It is also found that the new peak shows a small red-shift when the thickness of the PbPc layer increases. It is concluded that the new peak is a result of composition, and the red-shift is caused by both interface effect and quantum confinement effect of the nanometer multilayered structure.

Key words: Metallophthalocyanine, Layered composite film, UV-Vis absorption

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