Novel isoindigo-based conjugated polyelectrolytes: Synthesis and fluorescence quenching behavior with water-soluble poly(<i>p</i>
-phenylenevinylene)s
作者:Chun Kou、Xiaolong He、Xueyu Jiang、Yifeng Ni、Ling Liu、Changxin Huangfu、Kuan Liu
DOI:10.1002/pola.27711
日期:2015.10.1
PIDPV at a very low concentration. Cationic PPV shows an efficient quenching effect with ΚSV = 1.01 × 106 M−1 in the presence of (−)‐PIDPV while the anionic PPV gives a lager quenching constant with ΚSV = 1.71 × 106 M−1 in the presence of (+)‐PIDPV. Furthermore, the blend films of water‐soluble PPVs and oppositely charged PIDPV also exhibit excellent quenching effect. These properties suggest that (+)‐PIDPV
通过Heck偶联反应合成了两种新型的基于ID的水溶性共轭聚合物(+)-PIDPV和(-)-PIDPV。这两种聚电解质均由异靛蓝单元和亚苯基亚乙烯基单元组成。在紫外可见吸收光谱中,(+)-PIDPV和(-)-PIDPV均显示出宽吸收带,几乎覆盖了整个可见光区域。光物理研究表明,水溶性PPV的荧光可以通过以非常低的浓度带相反电荷的PIDPV来有效地猝灭。阳离子PPV示出了具有高效的淬灭效应Κ SV = 1.01×10 6中号-1中的存在( - ) - PIDPV而阴离子PPV给出与啤酒淬灭常数Κ SV = 1.71×10 6在(+)-PIDPV存在的情况下M -1 此外,水溶性PPV和带相反电荷的PIDPV的共混膜也表现出出色的淬灭效果。这些性质表明,(+)-PIDPV和(-)-PIDPV是离子光敏层在有机太阳能电池中的应用前景广阔的材料。©2015 Wiley Periodicals,Inc