Core Expansion of Perylenetetracarboxdiimide Dyes with Anthraquinone Units for Electron‐Accepting Materials
2013
A perylenetetracarboxdiimide derivative containing an anthraquinone unit has been synthesized by the phototriggered intramolecular cyclization of 2-anthraquinone-substituted perylenetetracarboxdiimide. The anthraquinone-substituted perylenetetracarboxdiimide dyes showed excellent electron-accepting abilities with four reversible reduction potentials. Photovoltaic devices of ITO/PEDOT:PSS/P3HT:PDIs/Ca/Al were fabricated and power conversion efficiencies of 0.16 and 0.39 were obtained for 1 and 2, respectively.
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