6 October 2014 Flexible organic tandem solar modules: a story of up-scaling
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Abstract
The competition in the field of solar energy between Organic Photovoltaics (OPVs) and several Inorganic Photovoltaic technologies is continuously increasing to reach the ultimate purpose of energy supply from inexpensive and easily manufactured solar cell units. Solution-processed printing techniques on flexible substrates attach a tremendous opportunity to the OPVs for the accomplishment of low-cost and large area applications. Furthermore, tandem architectures came to boost up even more OPVs by increasing the photon-harvesting properties of the device. In this work, we demonstrate the road of realizing flexible organic tandem solar modules constructed by a fully roll-to-roll compatible processing. The modules exhibit an efficiency of 5.4% with geometrical fill factors beyond 80% and minimized interconnection-resistance losses. The processing involves low temperature (<70 °C), coating methods compatible with slot die coating and high speed and precision laser patterning.
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George D. Spyropoulos, George D. Spyropoulos, Peter Kubis, Peter Kubis, Ning Li, Ning Li, Luca Lucera, Luca Lucera, Michael Salvador, Michael Salvador, Derya Baran, Derya Baran, Florian Machui, Florian Machui, Tayebeh Ameri, Tayebeh Ameri, Monika M. Voigt, Monika M. Voigt, Christoph J. Brabec, Christoph J. Brabec, } "Flexible organic tandem solar modules: a story of up-scaling", Proc. SPIE 9184, Organic Photovoltaics XV, 91841A (6 October 2014); doi: 10.1117/12.2061566; https://doi.org/10.1117/12.2061566
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