Synthesis and photovoltaic properties of poly(p‐phenylenevinylene) derivatives containing oxadiazole |
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| Authors: | Shanpeng Wen Jianing Pei Yinhua Zhou Lili Xue Bin Xu Yaowen Li Wenjing Tian |
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| Affiliation: | State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, People's Republic of China |
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| Abstract: | A novel poly(p‐phenylenevinylene) PPV‐based copolymer (3C‐OXD‐PPV) with electron‐deficient oxadiazole segments as the side chain has been successfully synthesized through the Gilch polymerization. The obtained copolymer is soluble in common organic solvents such as chloroform, tetrahydronfuran, and 1,1,2,2‐tetrachloroethane. The copolymer was characterized by 1H NMR, elemental analysis and GPC. TGA measurement of the copolymer shows it has good thermal stability with decomposition temperature higher than 350 °C. The absorption, electrochemical properties of the 3C‐OXD‐PPV were investigated and also compared with the properties of MEH‐PPV. The HOMO and LUMO levels of 3C‐OXD‐PPV were estimated from the electrochemical cyclic voltammograms. Bulk‐heterojunction PVCs were fabricated by using 3C‐OXD‐PPV blended PCBM as an active layer. The PCE of the PVC is 1.60% under 100 mW cm?2 AM 1.5 illumination, which indicates that 3C‐OXD‐PPV is a potential candidate for the application of polymer PVC. © 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 1003–1012, 2009 |
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| Keywords: | charge transfer conjugated polymer functionalization of polymer oxadiazole poly(p‐phenylenevinylene) |
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