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27 August 2009Efficient and long-term stable organic vacuum deposited tandem solar cells
We report on latest progress in the field of p-i-n type tandem solar cells. An optimized tandem cell architecture with two
complementary absorbing bulk heterojunctions leads to a certified power conversion efficiency of 5.9% on 2 cm2 active
area. Moreover, we show that p-i-n type tandem solar cells can be extremely stable: Extrapolated lifetimes corresponding
to more than 30 years of sun illumination have been achieved. Furthermore, we show that efficiency and stability only
slightly decrease when transferring the cell architecture to large serially interconnected modules of more than 100 cm²
area.
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G. Schwartz, B. Maennig, C. Uhrich, W. Gnehr, S. Sonntag, O. Erfurth, E. Wollrab, K. Walzer, M. Pfeiffer, "Efficient and long-term stable organic vacuum deposited tandem solar cells," Proc. SPIE 7416, Organic Photovoltaics X, 74160K (27 August 2009); https://doi.org/10.1117/12.828955