Preparation and characterization of carbon nanotubes encapsulated GaN nanowires

C. C. Chen, C. C. Yeh, C. H. Liang, C. C. Lee, C. H. Chen, M. Y. Yu, H. L. Liu, L. C. Chen, Y. S. Lin, K. J. Ma, K. H. Chen

研究成果: 雜誌貢獻文章

25 引文 斯高帕斯(Scopus)

摘要

A novel two-step catalytic reaction is developed to synthesize gallium nitride nanowires encapsulated inside carbon nanotubes (GaN@CNT). The nanowires are prepared from the reaction of gallium metal and ammonium using metals or metal alloys as a catalyst. After the formation of the nanowires, carbon nanotubes are subsequently grown along the nanowires by chemical vapor deposition of methane. The structural and optical properties of pure GaN nanowires and GaN@CNT are characterized using scanning electron microscopy, transmission electron microscopy, X-ray diffraction, energy dispersive X-ray spectroscopy and Raman spectroscopy. The results show that GaN nanowires are indeed encapsulated inside carbon nanotubes. The field emission studies show that the turn-on field of GaN@CNT is higher than that of carbon nanotubes, but substantially lower than that of pure GaN nanowires. This work provides a wide route toward the preparation and applications of new one-dimensional semiconductor nanostructures.

原文英語
頁(從 - 到)1577-1586
頁數10
期刊Journal of Physics and Chemistry of Solids
62
發行號9-10
DOIs
出版狀態已發佈 - 2001 十月 1

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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    Chen, C. C., Yeh, C. C., Liang, C. H., Lee, C. C., Chen, C. H., Yu, M. Y., Liu, H. L., Chen, L. C., Lin, Y. S., Ma, K. J., & Chen, K. H. (2001). Preparation and characterization of carbon nanotubes encapsulated GaN nanowires. Journal of Physics and Chemistry of Solids, 62(9-10), 1577-1586. https://doi.org/10.1016/S0022-3697(01)00097-X