Chalcopyrite semiconductors for highly efficient thin-film solar cells

Thomas J Walter; R. Klenk; M. Ruckh; K. O. Velthaus; Hans Werner Schock

doi:10.1117/12.130571

9 December 1992 Chalcopyrite semiconductors for highly efficient thin-film solar cells

Thomas J Walter, R. Klenk, M. Ruckh, K. O. Velthaus, Hans Werner Schock

Proceedings Volume 1729, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XI: Photovoltaics, Photochemistry, Photoelectrochemistry; (1992) https://doi.org/10.1117/12.130571
Event: Optical Materials Technology for Energy Efficiency and Solar Energy, 1992, Toulouse-Labege, France

Abstract

In this contribution the material properties of polycrystalline (Cu,Ag)(In,Ga)(S,Se)₂ thin films and their suitability for heterojunction solar cells are discussed. The copperchalcogenides play an important role in the formation of these films. However, a deteriorating impact of these secondary phases on the cell performance exists. Methods to overcome this dilemma are presented. The role of the morphology and of the chemistry of grain boundaries is illustrated in the CuGaSe₂ and CuIn(S,Se)₂ system. Important parameters for the design of a heterojunction solar cell are discussed. During the course of this work solar cells with efficiencies exceeding 14% could be obtained.

Citation Download Citation

Thomas J Walter, R. Klenk, M. Ruckh, K. O. Velthaus, and Hans Werner Schock "Chalcopyrite semiconductors for highly efficient thin-film solar cells", Proc. SPIE 1729, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XI: Photovoltaics, Photochemistry, Photoelectrochemistry, (9 December 1992); https://doi.org/10.1117/12.130571

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KEYWORDS

Copper

Thin films

Gallium

Solar cells

Sulfur

Heterojunctions

Silver

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