Skip to main content Accessibility help
×
Home

Structure Investigations of Several In-rich (Cu2Se)x(In2Se3)1−x Compositions: From Local Structure to Long Range Order

  • C.-H. Chang (a1), Su-Huai Wei (a2), S. P. Ahrenkiel (a2), J. W. Johnson (a3), B.J. Stanbery (a3), T.J. Anderson (a3), S.B Zhang (a2), M.M. Al-Jassim (a2), G. Bunker (a4), E.A. Payzant (a5) and R. Duran (a3)...

Abstract

The observed junction between α-CuInSe2 and the In-rich compositions in the β-phase domain (e.g. CuIn3Se5) appears to play an important role in the photovoltaic process [1]. There remain, however, inconsistencies and uncertainties about the boundary and structure of this phase. In general the structure of this phase belongs to defect tetrahedral family of structures [2], which can be described as normal tetrahedral structures with a certain fixed number of unoccupied structure sites. In this work, the local structures of various (Cu2Se)x(In2Se3)1−x semiconductor alloys in the β-phase domain were studied by Extended X-ray Absorption Fine Structure (EXAFS) and the results were compared to those for the α-CuInSe2 phase. The long- range order of these compositions was studied by X-Ray powder Diffraction (XRD) and electron diffraction. It was found the local structures of these compounds are well defined. These compounds, however, could not be well described by any long-range order structure model, especially the selenium position. First-principles band structure calculations were performed to assist in assigning crystal structures to CuInSe2, CuIn3Se5 and CuIn5Se8. The calculations indicated that the local environments of these compounds are well defined. Their long-range order might depend sensitively on growth history and the configurational entropies as suggested by the similar formation energies of several possible crystal structures for CuIn3Se5 and CuIn5Se8.

Copyright

References

Hide All
1. Schmid, D., Ruckh, M., Grunwald, F., Schock, H.W., J. Appl. Phys., 73(6), 2902, 1992.
2. Parthé, E., Crystal Chemistry of Tetrahedral Structures, Gordon and Breach, New York, 1964.
3. Palatnik, L. S. and Rogacheva, E. J., Dokl. Akad. Nauk SSSR 174, 80, 1967.
4. Lesuer, R., Djega-Mariadassou, C., Charpin, P. and Albany, J.H., Inst. Phys. Conf. Ser. No. 35, p. 15, 1977.
5. Manolikas, C., Landuty, J. Van, Ridder, R. de, and Amelinckx, S., Phys. Stat. Sol. (a), 55, p.709, 1979.
6. Djega-Mariadassou, C., Rimsky, A., Lesuer, R. and Albany, J.H., Jpn. J. Appl. Phys., supplement, 19(3), p.145, 1980.
7. Tagirov, V.I., Gakhramanov, N.F., Guseinov, A.G., Aliev, F.M. and Guseinov, G.G., Sov. Phys. Crystallogr., 25(2), p.237, 1980.
8. Schumann, B., Kühn, G., Boehnke, U., Neels, H., Sov. Phys. Crystallogr., 26(6), p.678, 1981.
9. Hönle, W., Kühn, G., Boehnke, U.-C., Cryst. Res. Technol., 23, p.1347, 1988.
10. Hönle, W., Journal of Materials Science, 24, p.2483, 1989.
11. Tseng, B.H., Wert, C.A., J. Appl. Phys., 65(6), p.2254, 1989.
12. Normura, S. and Endo, S., Trans. MRS Japan 20, 755, 1996.
13. Hanada, T., Yamana, A., Nakamura, Y., and Nittono, O., Wada, T., Jpn. J. Appl. Phys. 36, L 1494, 1997.
14. Leicht, M., Remmele, T., Stenkamp, D., Strunk, H. P., J. Appl. Cryst. 32, 397, 1999.
15. Merino, J.M., Mahanty, S., Leon, M., Diaz, R., Rueda, F., Vidales, J.L. Martin de, Thin Solid Films, 361–362, 70, 2000
16. Ressler, T., J. Physique IV, 7 C2269, 1997.
17. Spiess, H.W., Haeberln, U., Brandt, G., Räuber, A., and Schneider, J., Phys. Stat. Sol. B 62, 183, 1974.
18. Ankudinov, A.L. and Rehr, J.J., Phys. Rev. B. 52, 2995, 1995.
19. Bernard, J.E., Zunger, A., Phys. Rev. B., 37, 6835, 1988.
20. Hornung, M., Benz, K.W., Margulis, L., Schmid, D., Schock, H.W., J. Cryst. Growth, 154, 315, 1995.
21. Wei, S.-H. and Krakauer, H., Phys. Rev. Lett. 55 1200, 1985.
22. Zhang, S. B., Wei, Su-Huai, Zunger, Alex, Katayama-Yoshida, H., Phys. Rev. B. 57, 9642, 1998.
23. Xiao, H.Z., Yang, L.-C., and Rockett, A., J. Appl. Phys., 76, p.1503, 1994.

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