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We report on a new thin-film Cu(In,Ga)Se2 (CIGS) solar cell record efficiency of 21.7%. In order to better understand this newest development, we describe the specific solar cell data as obtained from I–V measurement and diode analysis, quantum efficiency and secondary neutral mass spectrometry measurements. We hope that such a description will help to exploit the potential of this promising thin-film solar technology even further. (© 2015 WILEY-VCH Verlag GmbH &Co. KGaA, Weinheim)
Jackson et al. (Tue,) studied this question.
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