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Pyrolytic Preparation of Gallium Nitride From [Ga(NEt2)3]2 and its Ammonolysis Compound

Published online by Cambridge University Press:  10 February 2011

Seiichi Koyama ,
Yoshiyuki Sugahara  and
Kazuyuki Kuroda
Seiichi Koyama
Affiliation:
Department of Applied Chemistry, School of Science and Engineering, Waseda University, Ohkubo-3, Shinjuku-ku, Tokyo 169, JAPAN
Yoshiyuki Sugahara
Affiliation:
Department of Applied Chemistry, School of Science and Engineering, Waseda University, Ohkubo-3, Shinjuku-ku, Tokyo 169, JAPAN
Kazuyuki Kuroda
Affiliation:
Department of Applied Chemistry, School of Science and Engineering, Waseda University, Ohkubo-3, Shinjuku-ku, Tokyo 169, JAPAN Kagami Memorial Laboratory for Materials Science and Technology, Waseda University, Nishiwaseda-2, Shinjuku-ku, Tokyo 169 JAPAN
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Abstract

Gallium nitride (GaN) was prepared by the pyrolytic conversion of both [Ga(NEt2)3]2 and its ammonolysis product at 600 °C for 4 h under Ar. The pyrolyzed residues were analyzed by X-ray powder diffraction and scanning electron microscopy, and the pyrolysis processes of the precursors under He were investigated by thermogravimetry-mass spectrometry. The XRD pattern of the pyrolyzed residue of [Ga(NEt2)3]2 showed well-resolved peaks due to a mixture of cubic and hexagonal close-packed layers of GaN. The broad XRD pattern of the pyrolyzed residue of the ammonolysis product was also attributed to the mixture of cubic and hexagonal close-packed layers of GaN. For the pyrolysis of [Ga(NEt2)3]2, the evolution of hydrocarbons was extensively observed at relatively high temperature, but a large amount of carbon (11 mass%) was still detected in the pyrolyzed residue. On the other hand, the amount of carbon was only 1.1 mass% in the pyrolyzed residue of the ammonolysis product. The pyrolysis results of the ammonolysis product under Ar were very similar to those of [Ga(NEt2)3]2 under NH3.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 468: Symposium D – Gallium Nitride and Related Materials II , 1997 , 93
Copyright
Copyright © Materials Research Society 1997

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References

REFERENCES

1. Morkoc, H., Strite, S., Gao, G. B., Lin, M. E., Sverdlov, B. and Bums, M., J. Appl. Phys. 76 (3), 1363 (1994).Google Scholar
2. Neumayer, D. A. and Ekerdt, G., Chem. Mater. 8, 9 (1996).Google Scholar
3. Pouskouleli, G., Ceram. Int. 15, 213 (1989).Google Scholar
4. Rice, R. W., Am. Ceram. Soc. Bull. 62, 889 (1983).Google Scholar
5. Gonsalves, K. E., Carlson, G., Rangarajan, S. P., Benaissa, M. and Jose-Yacaman, M., J. Mater. Chem. 6 (8), 1451 (1996).Google Scholar
6. Janik, J. F. and Wells, R. L., Chem. Mater. 8, 2708 (1996).Google Scholar
7. Hwang, J-W., Campbell, J. P., Kozubowski, J., Hanson, S. A., Evans, J. F. and Gladfelter, W. L., Chem. Mater. 7, 517 (1995).Google Scholar
8. Wade, T., Crooks, R. M., Mater. Res. Soc. Symp. Proc. 410, 121 (1996).Google Scholar
9. Nöth, H., Konrad, P., Z. Naturforsch. 30b, 681 (1975).Google Scholar
10. Atwood, D. A., Atwood, V. O., Cowley, A. H., Jones, R. A., Atwood, J. L. and Bott, S. G., Inorg. Chem. 33, 3251 (1994).Google Scholar
11. Waggoner, K. M., Olmstead, M. M. and Power, P. P., Polyhedron 9, 257 (1990).Google Scholar
12. Baxter, D. V., Chisholm, M. H., Gama, G. J., Distasi, V. F., Hector, A. L. and Parkin, I. P., Chem Mater. 8, 1222 (1996).Google Scholar
13. Brown, G. M. and Maya, L., J. Am. Ceram. Soc. 71 (1), 78 (1988).Google Scholar
14. Maya, L., Adv. Ceram. Mater. 1 (2), 150 (1986).Google Scholar
15. Veith, M., Chem. Rev. 90, 3 (1990).Google Scholar
16. Narsavage, D. M., Interrante, L. V., Marchetti, P. S. and Maciel, G. E., Chem. Mater. 3, 721 (1991).Google Scholar