Acta Phys. -Chim. Sin. ›› 1999, Vol. 15 ›› Issue (10): 925-929.doi: 10.3866/PKU.WHXB19991012

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Preparation and Properties of Nanosized Composite Particle SnO2/CdS

Xu Bin, Cheng Hu-Min, Wang Yan-Qin, Ma Ji-Ming   

  1. Department of Chemistry,Peking University,Beijing 100871
  • Received:1998-12-23 Revised:1999-04-20 Published:1999-10-15
  • Contact: Cheng Hu-Min


 A new coated type of SnO 2/CdS nanosized composite particles was prepared by wet chemical method. The composition, structure and size of the product were determined by XRD, ICP, TEM and HRTEM. Compared with pure SnO 2 particle, it has stronger absorption in the range of longer wavelength (360~580nm) and shows good photo electrochemical character. The maximum value of IPCE was 40.9%, much greater than that of pure SnO2 electrode, 0.65%. The range photoelectric response has been broadened from 300~400nm to 300~550nm.

Key words: SnO2-CdS, Composite nanoparticle, Photoelectric conversion