DOI QR코드

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Al-Zn 합금의 직접용융산화법을 이용한 ZnO 나노와이어의 제작

Fabrication of ZnO Nanowires by Direct Melt Oxidation of Al-Zn Alloy

  • 발행 : 2008.11.01

초록

ZnO nanowires with tetrapod shape were formed on the surface of the sample by direct melt oxidation of Al-Zn alloy at $1000^{\circ}C$ in air. X-ray diffraction (XRD) pattern revealed that the ZnO nanowires had wurtzite structure of hexagonal phase. Any other element except Zn and O was not detected in energy dispersive X-ray spectrum. The c- and a-axis lattice constants estimated from the XRD pattern were 0.520 and 0.325 nm, respectively. These are in well accordance with those of bulk ZnO single crystal, indicating high quality crystallinity. The green light emission at a wavelength of 510 nm was observed from the nanowires at room temperature, which was ascribed to high density of oxygen vacancies in nanowires.

키워드

참고문헌

  1. Y. S. Chang and M. J. Ting, "Growth of ZnO thin films and whiskers", Thin Solid Films, Vol. 398-399, No. 11, p. 29, 2001 https://doi.org/10.1016/S0040-6090(01)01299-8
  2. B. M. Ataev, A. M. Bagamadova, V. V. Mamedov, and A. K. Omaev, "Thermally stable, highly conduvtive, and transparent ZnO layers prepared in situ by chemical vapor deposition", Mater. Sci. Eng. B, Vol. 65, No. 11, p. 159, 1999 https://doi.org/10.1016/S0921-5107(99)00166-X
  3. Y. W. Wang, L. D. Zhang, G. Z. Wang, X. S. Peng, Z. Q. Chu, and C. H. Liang, "Catalytic growth of semiconducting zinc oxide nanowires and their photoluminescence properties", J. Cryst. Growth, Vol. 234, No. 1, p. 171, 2002 https://doi.org/10.1016/S0022-0248(01)01661-X
  4. J. Q. Hu, X. L. Ma, Z. Y. Xie, N. B. Wong, C. S. Lee, and S. T. Lee, "Charaterization of zinc oxide crystal whiskers grown bt thermal evaporation", Chem. Phys. Lett., Vol. 344, No. 8, p. 97, 2001 https://doi.org/10.1016/S0009-2614(01)00720-5
  5. 공보현, 박태은, 조형균, "합성절차에 따른 1차원 ZnO 나노구조의 형태조절과 특성평가", 전기전자재료학회논문지, 19권, 1호, p. 13, 2006 https://doi.org/10.4313/JKEM.2006.19.1.013
  6. M. Lin, T. Sudhiranjan, C. Boothroyd, and K. P. Loh, "Influence of Au catalyst on the growth of ZnS nanowires", Chem. Phys. Lett., Vol. 400, No. 12, p. 175, 2004 https://doi.org/10.1016/j.cplett.2004.10.115
  7. S. Y. Li, C. Y. Lee, and T. Y. Tseng, "Copper- catalyzed ZnO nanowires on Si(100) grown by vapor-liquid-solid process", J. Cryst. Growth, Vol. 247, No. 1, p. 357, 2003 https://doi.org/10.1016/S0022-0248(02)01918-8
  8. K. vanheusden, W. L. Warren, C. H. Seager, D. R. Tallant, J. A. Voigt, and B. E. Gnade, "Mechanisms behind green photoluminescence in ZnO phosphor powders", J. Appl. Phys., Vol. 79, No. 5, p. 7983, 1996 https://doi.org/10.1063/1.362349
  9. M. Y. Ge, H. P. Wu, L. Niu, J. F. Liu, S. Y. Chen, P. Y. Shen, Y. W. Zeng, Y. W. Wang, G. Q. Zhang, and J. Z. Jiang, "Nanostructured ZnO: From monoparticles to nanorods", J. Cryst. Growth, Vol. 305, No. 7, p. 162, 2007 https://doi.org/10.1016/j.jcrysgro.2007.03.016
  10. U. Manzoor and D. K. Kim, "Synthesis and enhancement of ultraviolet emission by post-thermal treatment of unique zinc oxide comb-shaped dendritic nanostructures", Scripta Mater., Vol. 54, p. 807, 2006 https://doi.org/10.1016/j.scriptamat.2005.11.012