Proceedings of the Korean Institute of Surface Engineering Conference (한국표면공학회:학술대회논문집)

The Korean Institute of Surface Engineering (한국표면공학회)
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Vapor-quasiliquid-solid (VQS) mechanismof one-dimensional nanostructure growth based Cu catalyst

  • Hien, Vu Xuan (School of Materials Science and Engineering, Kyungpook National University) ;
  • You, Jae-Lok (School of Materials Science and Engineering, Kyungpook National University) ;
  • Jo, Kwang-Min (School of Materials Science and Engineering, Kyungpook National University) ;
  • Kim, Se-Yun (School of Materials Science and Engineering, Kyungpook National University) ;
  • Lee, Joon-Hyung (School of Materials Science and Engineering, Kyungpook National University) ;
  • Kim, Jeong-Joo (School of Materials Science and Engineering, Kyungpook National University) ;
  • Heo, Young-Woo (School of Materials Science and Engineering, Kyungpook National University)
  • Published : 2014.11.20
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Abstract

The submicron-rods of $Cu_2O$ with diameters of 100-700 nm and lengths of $2-8{\mu}m$ were synthesized by radio frequency magnetron sputtering. The abundance of Cu species, which is modulated by the $Ar/O_2$ ratio during the sputtering process affect directly to the growths of the $Cu_2O$ branches on the bodies of the submicron-rods. Transmission electron microscopy and elemental mapping reveal that metallic Cu are existed on the heads of the $Cu_2O$ rods. The growth rate, catalyst phase and shape reveal that vapor-quasiliquid-solid was the growth mechanism of the formations of those structures.

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