Hostname: page-component-848d4c4894-p2v8j Total loading time: 0 Render date: 2024-05-01T08:48:58.706Z Has data issue: false hasContentIssue false
  • English
  • Français

Effects of CuIn0,5Ga0,5Se2 growth by isothermal and bithermal Cu-Poor/Rich/Poor sequence on solar cells properties

Published online by Cambridge University Press:  31 January 2011

Hakim Marko ,
Adam Hultqvist ,
Charlotte Platzer-Björkman ,
Sébastien Noël  and
John Kessler
Hakim Marko
Affiliation:
hakim.marko@cea.fr, IMN, Nantes University - CNRS, Nantes, France
Adam Hultqvist
Affiliation:
Adam.Hultqvist@Angstrom.uu.se, Ångström Solar Center, Uppsala University, Uppsala, Sweden
Charlotte Platzer-Björkman
Affiliation:
chpl@angstrom.uu.se, Ångström Solar Center, Uppsala University, Uppsala, Sweden
Sébastien Noël
Affiliation:
sebastien.noel@cea.fr, CEA, Liten, LCRE, Grenoble, France
John Kessler
Affiliation:
john.kessler@univ-nantes.fr, IMN, Nantes University - CNRS, Nantes, France
Get access

Abstract

Co-evaporated CuIn0,5Ga0,5Se2 thin film solar cells were grown using a sequential Cu-Poor/Rich/Poor process (CUPRO). During the growth process, the substrate temperature was either kept constant at 570 °C (iso-CUPRO) or decreased during the first step to either 360 or 430 or 500 °C (bi-CUPRO). According to atomic force microscopy (AFM) measurements, the lower the temperature is in the first step the smoother the final CIGS surface becomes. By decreasing the first step temperature, cross-section scanning electron microscopy (SEM) and θ-2θ x-ray diffraction (XRD) do not reveal clearly any important changes of morphology and crystallographic preferred orientation. SLG/Mo/CIGS/Buffer layer/i-ZnO/ZnO:Al/grid(Ni/Al/Ni) solar cells with either a chemical bath deposited CdS or an atomic layer deposited Zn(O,S) buffer layer were fabricated. For both buffer layers, the bi-CUPRO processes lead to higher efficiencies. Besides, using Zn(O,S), the electronic collection was improved for the infrared spectrum as well as for the ultraviolet spectrum. This resulted in efficiencies close to 14,5% for the Zn(O,S) cells.

Keywords

photovoltaicthin filmelectrical properties
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1165: Symposium M – Thin-Film Compound Semiconductor Photovoltaics–2009 , 2009 , 1165-M02-05
Copyright
Copyright © Materials Research Society 2009

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Wei, S. H. and Zunger, A. J. Appl. Phys. 78 (1995) 3846 Google Scholar
2. Alonso, M.I. Garriga, M. Durante Rincón, C.A., Hernández, E. and León, M., Appl. Phys. A 74 (2002) 659 Google Scholar
3. Repins, I. Contreras, M.A. Egaas, B. DeHart, C. Scharf, J. Perkins, C.L. To, B. and Noufi, R. Prog. Photovolt: Res. Appl. 16 (2008) 235 Google Scholar
4. Kazmerski, L.L. J. Electr. Spectr. Rel. Phenom. 150 (2006) 105 Google Scholar
5. Meillaud, F. Shah, A. Droz, C. Vallat-Sauvain, E. and Miazza, C. Sol. Energy Mater. Sol. Cells 90 (2006) 2952 Google Scholar
6. Rau, U. Proc. 3rd WCPEC, Osaka (2003) 2848 Google Scholar
7. Minemoto, T. Hashimoto, Y. Satoh, T. Negami, T. Takakura, H. and Hamakawa, Y. J. Appl. Phys. 89 (2001) 8327 Google Scholar
8. Hanna, G. Jasenek, A. Rau, U. and Schock, H.W. Thin Solid Films 387 (2001) 71 10.1016/S0040-6090(00)01710-7Google Scholar
9. Heath, J. T. Cohen, J. D. Shafarman, W. N. Liao, D. X. and Rockett, A.A. Appl. Phys. Lett. 80 (2002) 4540 Google Scholar
10. Turcu, M. Pakma, O. and Rau, U. Appl. Phys. Lett. 80 (2002) 2598 Google Scholar
11. Kessler, J. Chityuttakan, C. Lu, J. Schöldström, J. and Stolt, L. Prog. Photovolt: Res. Appl. 11 (2003) 319 Google Scholar
12. Contreras, M. A. Egaas, B. King, D. Swartzlander, A. and Dullweber, T. Thin Solid Films 361-362 (2000) 167 Google Scholar
13. Kessler, J. Schöldström, J. and Stolt, L. Proc. 28th IEEE PVSC, Anchorage (2000) 509 Google Scholar
14. Kessler, J. Bodegård, M., Hedström, J. and Stolt, L. Sol. Energ. Mater. Sol. Cells 67 (2001) 67 Google Scholar
15. Platzer-Björkman, C., Törndahl, T., Abou-Ras, D., Malmström, J., Kessler, J. and Stolt, L. J. Appl. Phys. 100 (2006) 044506 Google Scholar
16. Hultqvist, A. Platzer-Björkman, C., Petttersson, J. Törndahl, T. and Edoff, M. Thin Solid Films 517 (2009) 2305 Google Scholar