Performance of Cu(In,Ga)Se2-Based Solar Cells in Conventional and Concentrator Applications

J. R. Tuttle, J. S. Ward, A. Duda, T. A. Berens, M. A. Contreras, K. R. Ramanathan, A. L. Tennant, J. Keane, E. D. Cole, K. Emery, R. Noufi

Research output: Contribution to conferencePaperpeer-review

139 Scopus Citations


Cu(In,Ga)Se2 (CIGS) solar cells are under investigation for 1-sun and concentrator applications. Design criteria are examined and reveal that only grid design modifications are required. In the special case where cell width dimensions are 4-5 cm, an interdigitated design removes the back contact as a loss mechanism. Processing issues relating to the intrinsic ZnO layer are critical to optimal and reproducible cell performance. 1-sun and 20 sun performance of 17.7% are reported for different cells. The latter represents a 2.9% absolute improvement over the 1-sun control measurement. 20% performance is therefore a realistic goal. CIGS-based cells represent a viable concentrator technology.

Original languageAmerican English
Number of pages9
StatePublished - 1996
EventProceedings of the 1996 MRS Spring Symposium - San Francisco, CA, USA
Duration: 8 Apr 199611 Apr 1996


ConferenceProceedings of the 1996 MRS Spring Symposium
CitySan Francisco, CA, USA

NREL Publication Number

  • NREL/CP-23031


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