Journal of Institute of Convergence Technology (융복합기술연구소 논문집)

Institute of Convergence Technology (한국교통대학교 융복합기술연구소)
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Transformation of Semiconductor Nanoparticles into Twisted-Nanoribbons under Light

빛을 이용한 CdTe 나노입자의 자기조립과정을 통한 나노리본으로의 변화

  • Lee, Seung-Min (Department of Chemical and Biological Engineering, Korea National University of Transportation) ;
  • Lee, Kisun (Department of Chemical and Biological Engineering, Korea National University of Transportation) ;
  • Hong, Yeon Ki (Department of Chemical and Biological Engineering, Korea National University of Transportation) ;
  • Park, Byung Heung (Department of Chemical and Biological Engineering, Korea National University of Transportation) ;
  • Kim, Ki-Sub (Department of Chemical and Biological Engineering, Korea National University of Transportation)
  • 이승민 (한국교통대학교 화공생물공학과) ;
  • 이기선 (한국교통대학교 화공생물공학과) ;
  • 홍연기 (한국교통대학교 화공생물공학과) ;
  • 박병흥 (한국교통대학교 화공생물공학과) ;
  • 김기섭 (한국교통대학교 화공생물공학과)
  • Received : 2013.04.01
  • Accepted : 2013.05.03
  • Published : 2013.05.31
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Abstract

Cadmium telluride(CdTe) nanowires were successfully synthesized from individual nanoparticles via self-assembly and the evolutionary process was investigated. The oxidation of tellurium ions on CdTe nanoparticles resulted in the organization of individual nanoparticle into twisted-nanoribbons. The nanoparticles self-assembled to twisted ribbons under light while nanoparticles under dark transformed to straight nanowires made of several layers of individual nanoparticles. The images of nanoribbons were analysed based on transmission electron microscopy and scanning electron microscopy. The photoluminescence was blue-shifted from 555 to 545nm.

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