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Moritz Riede, Christian Uhrich, Johannes Widmer, Ronny Timmreck, David Wynands, Gregor Schwartz, Wolf-Michael Gnehr, Dirk Hildebrandt, Andre Weiss, Jaehyung Hwang, Sudhakar Sundarraj, Peter Erk, Martin Pfeiffer and Karl Leo Efficient Organic Tandem Solar Cells based on Small Molecules Advanced Functional Materials 21

Version of Record online: 14 JUN 2011 | DOI: 10.1002/adfm.201002760

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Complementary absorbing small molecules are combined in a vacuum deposited organic tandem solar cell to efficiently harvest the sun light over the whole visible range. The devices show advantageous behavior under different illumination intensities and angles, as well as typical operating temperatures. Further device optimization leads to an independently certified efficiency of 6.07% on nearly 2 cm2.

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