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- W2004569086 abstract "A series of novel polyfluorene copolymers are developed by covalently attaching narrow band gap aryl-heterocycle units of Th–BT–TPA to the side chain of polyfluorene with an alkyl phenyl spacer through Pd-catalyzed Suzuki coupling reactions. The resulting copolymers are soluble in common organic solvents. The electrochemical, optical, and photovoltaic properties of the copolymers are studied. Electrochemical and optical analysis reveal that these polymers exhibit relatively low band gaps from 1.95 to 2.00 eV and exhibit strong absorption in the 300–620 nm region. BHJ solar cells blending copolymers PF-MR15-DBT35 with [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) (1:1 weight ratio) as the active layer present a high open-circuit voltage (Voc∼1.0 V) and a power conversion efficiency of 0.7% under simulated solar light AM1.5G (80 mW/cm2). Further investigations of other polyfluorene copolymers with narrow band gap aryl-heterocycle units on the side chain are in progress." @default.
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- W2004569086 date "2010-12-01" @default.
- W2004569086 modified "2023-10-16" @default.
- W2004569086 title "Synthesis and photovoltaic properties of fluorene-based copolymers with narrow band-gap units on the side chain" @default.
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- W2004569086 doi "https://doi.org/10.1016/j.eurpolymj.2010.09.015" @default.
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