6 February 2004 Nanostructured solar cells based on semiconducting polymer nanospheres (SPNs) of M3EH-PPV and CN-Ether-PPV
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Abstract
Organic photovoltaic devices often show improved performances, if the active layer is made of a polymer blend. Due to the low miscibility of polymers the layer will phase separate and the lengthscale of the phase separation has a major influence on the device efficiency. We present a novel method to control the lengthscale of the phase separation, based on semiconducting polymer nanospheres (SPNs) forming the active layer. SPNs of M3EH-PPV (diameter 54nm) and CN-Ether-PPV (diameter 36nm) dispersed in water were produced by the miniemulsion process. Mono- and multilayers of these particles were fabricated by spincoating and photovoltaic devices utilizing these nanoparticles are shown to exhibit large external quantum efficiencies of up to 14%.
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Thomas Kietzke, Thomas Kietzke, Dieter Neher, Dieter Neher, Rivelino Montenegro, Rivelino Montenegro, Katharina Landfester, Katharina Landfester, Ullrich Scherf, Ullrich Scherf, H.-H. Hoerhold, H.-H. Hoerhold, "Nanostructured solar cells based on semiconducting polymer nanospheres (SPNs) of M3EH-PPV and CN-Ether-PPV", Proc. SPIE 5215, Organic Photovoltaics IV, (6 February 2004); doi: 10.1117/12.505458; https://doi.org/10.1117/12.505458
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