26 February 2003 State-of-the-art MDMO-PPV:PCBM bulk heterojunction organic solar cells: materials, nanomorphology, and electro-optical properties
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Abstract
Current state-of-the-art bulk hetero-junction organic photovoltaic devices will be discussed based on poly(2-methoxy-5-(3',7'-dimethyl-octyloxy))-p-phenylene vinylene, (MDMO-PPV), as an electron donor and (6,6)-phenyl-C61-butric-acid (PCBM)(a soluble C60 derivative) as electron acceptor. A brief review will be provided summarizing recent results on efficiency enhancement on morphological investigations. A significant increase in power conversion efficiency has been demonstrated for devices based on so-called 'sulphinyl' synthesized MDMO-PPV (ηAM1.5 = 2.9%) in comparison with devices based on 'Gilch' synthesized MDMO-PPV (ηAM1.5 = 2.5%). In order to understand the higher efficiency values obtained using a different solvent or a different MDMO-PPV-material, electrical and morphological investigations are being performed. Concerning the latter, it has been shown with various analytical techniques that the morphology of the blended photoactive films and also the power conversion efficiency of the corresponding photovoltaic devices are both simultaneously influenced by preparation conditions such as choice of the solvent and drying conditions.
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Jean V. Manca, Tom Munters, Tom Martens, Zjef Beelen, Ludwig Goris, Jan D'Haen, Marc D'Olieslaeger, Laurence Lutsen, Dirk Vanderzande, Luc De Schepper, Ken Haenen, Milos Nesladek, Wim Geens, Jef Poortmans, Ronn Andriessen, "State-of-the-art MDMO-PPV:PCBM bulk heterojunction organic solar cells: materials, nanomorphology, and electro-optical properties", Proc. SPIE 4801, Organic Photovoltaics III, (26 February 2003); doi: 10.1117/12.456322; https://doi.org/10.1117/12.456322
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