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, 131 (39), 13886-7

Development of New Conjugated Polymers With Donor-Pi-Bridge-Acceptor Side Chains for High Performance Solar Cells

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Development of New Conjugated Polymers With Donor-Pi-Bridge-Acceptor Side Chains for High Performance Solar Cells

Fei Huang et al. J Am Chem Soc.

Abstract

Two new conjugated polymers have been designed and synthesized for polymer solar cells. Both of them exhibit excellent photovoltaic properties with a power conversion efficiency as high as 4.74%. Different from the traditional linear donor-acceptor (D-A) type conjugated polymers, these newly designed polymers have a two-dimensional conjugated structure with their tunable acceptors located at the end of D-A side chains and connected with the donors on the main chain through an efficient pi-bridge. This approach provides great flexibility in fine-tuning the absorption spectra and energy levels of the resultant polymers for achieving high device performance.

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