Skip to main content Accessibility help
×
Home

Photoreflectance Study of Gan Film Grown by Metalorganic Chemical Vapor Deposition

  • K. Yang (a1), R. Zhang (a1), Y. D. Zheng (a1), L. H. Qin (a1), B. Shen (a1), H. T. Shi (a1), Z. C. Huang (a2) and J. C. Chen (a2)...

Abstract

Photoreflectance was used to study the optical properties of single crystal hexagonal GaN film on (0001) sapphire substrate grown by metalorganic chemical vapor deposition. The energy gap of GaN was determined as 3.400 eV, and the possible origin of the PR signal was attributed to the modulation of the surface field and lineshape broadening of defects. Optical absorption and cathodoluminescence of the GaN sample were measured, and the optical absorption edge of 3.39 eV and the cathodoluminescence emission peak of 3.461 eV at low temperature (15.6K) confirmed the results of Photoreflectance.

Copyright

References

Hide All
1. Strite, S. and Morkoc, H., J. Vac. Sci. Technol. B, 10, 1237(1992)
2. Morkoc, H., Strite, S., Gao, G.B., Lin, M.E., Sverdlov, B. and bums, M., J. Appl. Phys., 76, 1363(1994)
3. Nakamura, S., Mukai, T. and Senoh, M., Appl. Phys. Lett., 64, 1687(1994)
4. Khan, M.A., Kuznia, J.N., Bhattarai, A.R. and Olson, D.T., Appl. Phys. Lett., 62, 1786(1993)
5. Rubio, A., Corkill, J.L., Cohen, M.L., Shirley, E.L. and Louie, S.G., Phys. Rev. B, 48, 11810(1993)
6. Bloom, S., Harbeke, G., Meier, E. and Ortenburger, I.B., Phys. Stat. Sol.(b), 66, 161(1974)
7. Fertitta, K.G., Holmes, A.L., Neff, J.G., Ciuba, F.J. and Dupuis, R.D., Appl. Phys. Lett., 65, 1823(1994)
8. Singh, R., Molnar, R.J., Unlu, M.S. and Moustakas, T.D., Appl. Phys. Lett., 64,336(1994)
9. Yung, K., Yee, J., Too, J., Rubin, M., Newman, N. and Ross, J., Appl. Phys. Lett., 64, 1135(1994)
10. Giordana, A., Gaskill, D.K., Wickenden, D.K. and Wickenden, A. Estes, J. Electronic Materials, 23, 509(1994)
11. Qin, L.H., Yang, K., Zheng, Y.D., Zhang, R., Dai, X.J., Feng, D., Huang, Z.C. and Chen, J.C., Chinese Phys. Lett., 13(2), 153(1996)
12. Aspnes, D.E., Surf. Sci., 37, 418(1973)
13. Shan, W., Schmidt, T.J., Hauenstein, R.J., Song, J.J and Goldenberg, B., Appl. Phys. Lett., 66(25), 3492(1995)
14. Seraphin, B.O., Semiconductors and Semimetals, Vol.9, (Academic Press, New York, 1972), p. 29.

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed