Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Synthesis and Optical Properties of the Semiconductor Lead Sulfide Nanobelts

  • Yang, Xiao hong (Department of Chemistry, Tongji University) ;
  • Wu, Qing Sheng (Department of Chemistry, Tongji University) ;
  • Ding, Ya Ping (Department of Chemistry, Shanghai University) ;
  • Liu, Jin ku (Department of Chemistry, East China University of Science and Technology)
  • Published : 2006.03.20
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Abstract

The semiconductor PbS nanobelts (width 50-120 nm and length over 3 $\mu$m) were self-assembled in a simple reverse micelle solvent system containig the surfactant of polyoxyethylene (9) dodecy ether $(C_{12}E_9)$. The nanobelts synthesized were found to possess cube galena poly-crystal structure with high purity when analyzed by ED and X-ray diffraction. Significant “blue shift” from bulk material was observed on the PbS nanobelts using photoluminescence and UV-Vis spectroscopy. A mechanism involving the possible formation of nanobelts based on surfactant template was also proposed.

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