Cu(In,Ga)Se2 thin-film solar cells and modules―a boost in efficiency due to potassium

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Reinhard, P., Pianezzi, F., Bissig, B., Chirilǎ, A., Blösch, P., Nishiwaki, S., … Tiwari, A. N. (2015). Cu(In,Ga)Se2 thin-film solar cells and modules―a boost in efficiency due to potassium. IEEE Journal of Photovoltaics, 5(2), 656-663. https://doi.org/10.1109/JPHOTOV.2014.2377516