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Chun Du, Weiwei Li, Cuihong Li and Zhishan Bo Ethynylene-containing donor–acceptor alternating conjugated polymers: Synthesis and photovoltaic properties Journal of Polymer Science Part A: Polymer Chemistry 51

Version of Record online: 19 OCT 2012 | DOI: 10.1002/pola.26396

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Ethynylene-containing donor-acceptor alternating conjugated polymers with 2,5-bis(dodecyloxy) substituted phenylene or carbazole as the donor unit and benzothiadiazole (BTZ) as the acceptor unit have been synthesized and used as donor polymers in bulk heterojunction polymer solar cells. Absorption spectra and the HOMO and LUMO energy levels of polymers could be tuned by varying the position of the ethynylene unit in the polymer chains. These ethynylene containing conjugated polymers show higher open circuit voltages.

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