Skip to main content Accessibility help
×
Home

Defects in Copper Indium Aluminum Diselenide Films and their Impact on Photovoltaic Device Performance

  • Jennifer T. Heath (a1), J. David Cohen (a2) and William N. Shafarman (a3)

Abstract

The electronic properties of polycrystalline CuIn1-xAlxSe2 (CIAS) films, which are incorporated as the absorber layer in photovoltaic devices, have been studied to better understand limitations on device performance. These studies have shown that compared to lower Al content films and to CuIn1-yGaySe2films, films with x ≥ 0.29 are relatively intrinsic, spatially nonuniform, and have broader bandtails characterized by much higher Urbach energies. This indicates that the CIAS films with x ≥ 0.29 are significantly more disordered than lower Al content CIAS or corresponding CIGS films, which likely negatively impacts the resulting photovoltaic device performance.

Copyright

References

Hide All
1. Contreras, M., Egaas, B., Ramanathan, K., Hiltner, J., Swartzlander, A., Hasoon, F., and Noufi, R., Prog. Photovoltaics 7, 311 (1999).
2. Marsillac, S., Paulson, P. D., Haimbodi, M. W., Birkmire, R. W., and Shafarman, W. N., Appl. Phys. Lett. 81, 1350 (2002).
3. Shafarman, W. N., Marsillac, S., Paulson, P. D., Haimbodi, M. W., Minemoto, T., and Birkmire, R. W., in Proceedings of the 29th IEEE PVSC, 519 (2002).
4. Shafarman, W. N., Klenk, R., and McCandless, B. E., J. Appl. Phys. 79, 7324 (1996).
5. Cohen, J. D., Unold, T., et al., J. Non-Cryst. Solids 141, 142 (1992).
6. Heath, J. T., Cohen, J. D., Shafarman, W. N., Liao, D. X., and Rockett, A. A., Appl. Phys. Lett. 80, 4540 (2002).
7. Wasim, S. M., Rincón, C., Marín, G., Bocaranda, P., Hernández, E., Bonalde, I., and Medina, E., Phys. Rev. B 64, 195101 (2001).
8. Tiedje, T., Appl. Phys. Lett. 40, 627 (1982).
9. Losee, D. L., J. Appl. Phys. 46, 2204 (1975).
10. Walter, T., Herberholz, R., Müller, C., Schock, H. W., J. Appl. Phys 80, 4411 (1996).
11. Michelson, C. E., Gelatos, A. V., Cohen, J. D., Appl. Phys. Lett.. 47, 412 (1985).
12. Heath, J. T., Cohen, J. D., and Shafarman, W. N., Thin Solid Films, in press.
13. Cohen, J. D., Heath, J. T., and Shafarman, W. N., this proceedings, B9.1.

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