Advances in Cost-Efficient Thin-Film Photovoltaics Based on Cu(In,Ga)Se 2
2017
Abstract In this article, we discuss the leading thin-film photovoltaic (PV) technology based on the Cu(In,Ga)Se 2 (CIGS) compound semiconductor. This contribution includes a general comparison with the conventional Si-wafer-based PV technology and discusses the basics of the CIGS technology as well as advances in world-record-level conversion efficiency, production, applications, stability, and future developments with respect to a flexible product. Once in large-scale mass production, the CIGS technology has the highest potential of all PV technologies for cost-efficient clean energy generation.
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