Cruciform oligo(phenylenevinylene) with a bipyridine bridge: synthesis, its rhenium(I) complex and photovoltaic properties |
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| Authors: | He Feng Zhou Yinhua Liu Suijun Tian Leilei Xu Hai Zhang Houyu Yang Bin Dong Qingfang Tian Wenjing Ma Yuguang Shen Jiacong |
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| Affiliation: | State Key Laboratory for Supramolecular Structure and Materials, Jilin University, Changchun, PR China. |
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| Abstract: | A cruciform-shaped oligo(phenylenevinylene) (OPV) with a phosphorescent rhenium(I) chromophore incorporated at the centre and grafted triphenylamines around the periphery was designed as a new organic photovoltaic material, in which the chelation of rhenium(I) to the cruciform successfully constructs a three-dimensional intramolecular charge transfer system and extends the exciton lifetime; as a result, the rhenium-OPV complex shows a power conversion efficiency almost two times that of the metal ion-free parent compound. |
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