Journal
SOLAR ENERGY MATERIALS AND SOLAR CELLS
Volume 93, Issue 6-7, Pages 742-745Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.solmat.2008.09.018
Keywords
Organic; Photovoltaic; Solar cell; Open-circuit voltage; ZnPc; Rubrene; Doping
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We have studied highly efficient organic photovoltaic (OPV) cells based on small-molecular-weight semiconductors: zinc phthalocyanine (ZnPc) and C60. To improve the efficiency furthermore, open-circuit voltage (V(oc)) has to be increased. We reported that 5,6,11,12-tetraphenylnaphthacene (rubrene) produces the highest V(oc) of 0.91 V by p-n heterojunction OPV cells with C60. In this paper, we report rubrene doping effects for OPV cells based on ZnPc to obtain higher V(oc). (C) 2008 Elsevier B.V. All rights reserved.
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