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Title
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Optical enhancement of a printed organic tandem solar cell using diffractive nanostructures
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Author
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Abstract
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| Solution processable organic tandem solar cells offer a promising approach to achieve cost-effective, lightweight and flexible photovoltaics. In order to further enhance the efficiency of optimized organic tandem cells, diffractive light-management nanostructures were designed for an optimal redistribution of the light as function of both wavelength and propagation angles in both sub-cells. As the fabrication of these optical structures is compatible with roll-to-roll production techniques such as hot-embossing or UV NIL imprinting, they present an optimal cost-effective solution for printed photovoltaics. Tandem cells with power conversion efficiencies of 8-10% were fabricated in the ambient atmosphere by doctor blade coating, selected to approximate the conditions during roll-to-roll manufacturing. Application of the light management structure onto an 8.7% efficient encapsulated tandem cell boosted the conversion efficiency of the cell to 9.5%. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement |
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Language
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English
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Source (journal)
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Optics express. - -
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Publication
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2018
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ISSN
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1094-4087
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Volume/pages
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26
:6
(2018)
, p. A240-A250
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ISI
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000427900400003
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Pubmed ID
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29609334
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Full text (Publisher's DOI)
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Full text (open access)
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