Poly(3-dodecylthienylenevinylene)s: Regioregularity and Crystallinity

Citations Over TimeTop 10% of 2011 papers

Abstract

A series of poly(dodecylthienylenevinylenes), C12-PTVs-a:b, with tunable regioregularity and solubility have been synthesized using two isomeric comonomers with molar ratios from 0:10 to 5:5, and characterized by NMR spectroscopy, differential scanning calorimetry, absorption spectroscopy, cyclovoltammetry, and X-ray diffraction. For the first time, the aromatic and olefinic 1H NMR peaks of regioregular head–tail Cn-PTVs are clearly assigned. No major difference in XRD peak intensity is observed among regiorandom and fully regioregular C12-PTVs. Voc of C12-PTVs-a:b and PC60BM blend solar cells are in the range of 0.43 to 0.51 V and consistently decrease as regioregularity is reduced. C12-PTV-3:7:PC60BM solar cells give the highest short-circuit current and practically same efficiency as that of C12-PTV-1:9:PC60BM devices. The results suggest a new strategy to enhance processability of optoelectronic polymers without sacrificing their crystallinity and device performance.

Related Papers

• → X-ray diffraction and infrared spectroscopy analyses on the crystallinity of engineered biological hydroxyapatite for medical application(2015)83 cited
• → Influence of antioxidants and cross-linking on the crystallinity of XLPE dielectrics(2007)8 cited
• → A Comparative Study of The Crystallinity Value of Polyethylene Glycol-Based Composites Using XRD and WAXS(2022)4 cited
• → Effect of the Degree of Crystallinity on Friction and Wear of Poly(ethylene terephthalate)(1985)9 cited
• Research on Crystallization Behavior of PVF Film during Processing(2008)