Catalyst-Free Growth of Magnesium Oxide Whiskers and Their Characteristics

• Authors: H. Kim , M. Kong , J. Yang
• Languages of publication: EN

Abstracts

EN

This study reports the production of magnesium oxide (MgO) whiskers on silicon (Si) substrates by the thermal heating of MgB_2 powders. We investigated the structural properties of the as-synthesized whiskers by using X-ray diffraction, transmission electron microscopy, selected area electron diffraction, and scanning electron microscopy. The product consisted of one-dimensional whiskers with a square cross-section. The whiskers had a single-crystalline cubic structure of MgO. The photoluminescence measurement with the Gaussian fitting exhibited visible light emission bands centered at 2.39 eV and 2.91 eV. We proposed the growth of MgO whiskers to follow the vapor-solid mechanism.

Keywords

EN

81.07.-b; 78.55.-m

Discipline

• 81.07.-b: Nanoscale materials and structures: fabrication and characterization(for structure of nanoscale materials, see 61.46.-w; for nanostructured materials in electrochemistry, see 82.45.Yz; see also 62.23.-c Structural classes of nanoscale systems in mechanical properties of condensed matter)
• 78.55.-m: Photoluminescence, properties and materials(for time resolved luminescence, see 78.47.jd)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 113
• Issue: 3
• Pages: 1021-1024

Dates

published

2008-03

received

2007-08-26

Contributors

author

H. Kim

• Division of Materials Science and Engineering, Inha University, Incheon 402-751, Republic of Korea

author

M. Kong

• Division of Materials Science and Engineering, Inha University, Incheon 402-751, Republic of Korea

author

J. Yang

• Advanced Materials R&D Center, Korea Institute of Industrial Technology, Republic of Korea

References

• 1. . H.W. Kim, J.W. Lee, J.-H. Yang, Acta Phys. Pol. A 113, 1017 (2008)
• 2. F. L. Deepak, P. Saldanha, S.R.C. Vivekchand, A. Govindaraj, Chem. Phys. Lett. 417, 535 (2006)
• 3. H. Niu, Q. Yang, K. Tang, Y. Xie, Micropor. Mesopor. Mater. 96, 428 (2006)
• 4. J. Zhang, L. Zhang, Chem. Phys. Lett. 363, 293 (2002)
• 5. G.H. Rosenblatt, M.W. Rowe, G.P. Williams, Jr., R.T. Williams, Y. Chen, Phys. Rev. B 39, 10309 (1989)
• 6. K. Vanheusden, W.L. Warren, C.H. Seager, D.R. Tallant, J.A. Voigt, B.E. Gnade, J. Appl. Phys. 79, 7983 (1996)
• 7. J. Guojian, Z. Hanrui, Z. Jiong, R. Meiling, L. Wenlan, W. Fengying, Z. Baolin, J. Mater. Sci. 35, 63 (2000)
• 8. S. Schintke, S. Messerli, M. Pivetta, F. Patthey, L. Libioulle, M. Stengel, A.D. Vita, W. Schneider, Phys. Rev. Lett. 87, 276801 (2001)

Identifiers

DOI

10.12693/APhysPolA.113.1021