Acta Phys. -Chim. Sin. ›› 2002, Vol. 18 ›› Issue (12): 1057-1061.doi: 10.3866/PKU.WHXB20021201

• ARTICLE •     Next Articles

Preparation and Formation Mechanism of Polycrystalline Vanadyl Phthalocyanine Nanoparticles

Li Bo;Bao Chao;Shi Bai-Xuan;Tomonori Kawakami;Mitsuo Hiramatsu   

  1. State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027;Central Research Laboratory, Hamamatsu Photonics K.K., 5000, Hirakuchi,Hamakita, Shizuoka 434-8601, Japan
  • Received:2002-02-18 Revised:2002-04-29 Published:2002-12-15
  • Contact: Bao Chao E-mail:zipl@zju.edu.cn

Abstract: The polycrystalline vanadyl phthalocyanine (VOPc) nanoparticles in phase I and phase II have been fabricated by laser ablation in aqueous solution without or with a kind of nonionic surfactants respectively. X-ray diffraction patterns, UV-Vis absorption spectroscopy and Fourier-transform infrared (FT-IR) spectroscopy have been used to characterize the crystalline structures in VOPc nanoparticles. About 100 nm-sized in phase I and 60 nm-sized in phase II particles of VOPc are observed by a scanning electron microscope (SEM). The formation mechanism of VOPc nanoparticles in phase II is discussed in this paper.

Key words: Nanoparticles, Laser ablation, Surfactant, Phthalocyanine