Journal
SOLAR ENERGY MATERIALS AND SOLAR CELLS
Volume 91, Issue 11, Pages 986-995Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.solmat.2007.01.008
Keywords
photon harvesting; energy transfer; organic; solar cell; zeolite L
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Organic semiconductors usually show high absorption coefficients only over a limited spectral range. This has to be taken into account when designing organic solar cells with low-energy gap absorbers, as it is likely that these cells will have reduced harvesting abilities for photons of higher energy. We will present two routes to tackle this problem via luminescence and energy transfer and outline three novel concepts of how to integrate these mechanisms. We use an efficient low-energy gap organic solar cell based on zinc-phthalocyanine and fullerene C-60 as a model system. (c) 2007 Elsevier B.V. All rights reserved.
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