Structures of Ultrathin Copper Nanowires Encapsulated in Carbon Nanotubes

탄소나노튜브 속에 성장된 구리 나노와이어의 구조

  • Choi, Won-Young (Computational Semiconductor Laboratory, Department of Electronic Engineering, Chung-Ang Uni.) ;
  • Kang, Jeong-Won (Computational Semiconductor Laboratory, Department of Electronic Engineering, Chung-Ang Uni.) ;
  • Song, Ki-Oh (Computational Semiconductor Laboratory, Department of Electronic Engineering, Chung-Ang Uni.) ;
  • Hwnang, Ho-Jung (Computational Semiconductor Laboratory, Department of Electronic Engineering, Chung-Ang Uni.)
  • 최원영 (중앙대학교 전자전기공학부 반도체 공정소자 연구실) ;
  • 강정원 (중앙대학교 전자전기공학부 반도체 공정소자 연구실) ;
  • 송기오 (중앙대학교 전자전기공학부 반도체 공정소자 연구실) ;
  • 황호정 (중앙대학교 전자전기공학부 반도체 공정소자 연구실)
  • Published : 2003.07.10

Abstract

We have investigated the structures of copper nanowires encapsulated in carbon nanotubes using a structural optimization process applied to the steepest descent method. The results showed that the stable morphology of the cylindrical ultrathin copper nanowires in carbon nanotubes is multishell packs consisted of coaxial cylindrical shells. As the diameter of copper nanotubes increased, the encapsulated copper nanowires have the face centered cubic structure as the bulk. Both the semiclassical orbits in a circle and the circular rolling of a triangular network can explain the structures of ultrathin multishell copper nanowires encapsulated in carbon nanotubes.