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Synthesis, Raman scattering, and infrared spectra of a new condensed form of GaN nanophase material

  • Y. G. Cao (a1), X. L. Chen (a1), Y. C. Lan (a1), Y. P. Xu (a1), T. Xu (a1) and J. K. Liang (a1)...


A new form of transparent condensed nanophase material of GaN was synthesized directly by ammono-thermal synthetic route. Nano-sized effects and thermal stability of that material were investigated through Raman scattering and infrared spectra. Compared with bulk GaN, we observed the Raman low-energy-shift of the phonon frequency of E2(high) and the transverse optical mode [E1(TO)], the infrared high-energy-shift of, ωT, and the variation of relative intensity IE2/E1(TO). These characteristics can be attributed to the existence of the interface effects and the vacancy of N in the GaN nanophase material. This material has a high thermal stability even at 900 °C as indicated through infrared and Raman spectral investigation of annealed samples of as-synthesized nanophase material.


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1.Monemar, B., Phys. Rev. B 10, 676 (1974).
2.Nakamura, S., Science 281, 956 (1998).
3.Xie, Y., Science 272, 1926 (1996).
4.Han, W.Q., Fan, S.S., Li, Q.Q., and Hu, Y.D., Science 277, 1287 (1997).
5.Siegel, R.W., in Physics of New Materials, edited by Fujita, F.E. (Springer-Verlag, Berlin, 1998), pp. 66106.
6.Chen, X.L., Cao, Y.G., Lan, Y.C., Xu, Y.P., Tao, X., and Liang, J.K., J. Crystal. Growth (in press).
7.Wei, G., Zi, J., Zhang, K., and Xie, X., J. Appl. Phys. 82, 4693 (1997).
8.Yu, G., Ishikawa, H., Umeno, M., Egawa, T., Watanabe, J., Soga, T., and Jimbo, T., Appl. Phys. Lett. 73, 1472 (1998).
9.Barker, A.S. Jr, Phys. Rev. 132, 1474 (1963).
10.Veprek, S., Iqbal, Z., Oswald, H.R., and Webb, A.P.. J. Phys. C 14, 295 (1981).
11.Parker, J.C. and Siegal, R.W., Appl. Phys. Lett. 57, 943 (1990).
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Journal of Materials Research
  • ISSN: 0884-2914
  • EISSN: 2044-5326
  • URL: /core/journals/journal-of-materials-research
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