Synthesis and photovoltaic properties of low-bandgap polymers based on N-arylcarbazole
作者:Lifen Wang、Yingying Fu、Lei Zhu、Guangrui Cui、Fushun Liang、Liping Guo、Xintong Zhang、Zhiyuan Xie、Zhongmin Su
DOI:10.1016/j.polymer.2011.02.029
日期:2011.4
Low-bandgap poly(2,7-carbazole) derivatives with variable N-substituent of ethyl (PEtCzBT), phenyl (PPhCzBT) and 4-diphenylaminophenyl (PTPACzBT) on the carbazoles, were synthesized through Suzuki coupling reaction. The polymers show excellent solubility in organic solvents (readily soluble in chloroform, THF and toluene etc.), good thermal stability (5% weight loss temperature of more than 417 °C)
低带隙的聚(2,7-二咔唑)具有可变衍生物Ñ乙基-取代(PEtCzBT) ,苯基(PPhCzBT)和4-二苯基氨基苯基(PTPACzBT在咔唑),是通过Suzuki偶联反应合成。该聚合物在有机溶剂中具有优异的溶解性(易溶于氯仿,THF和甲苯等),良好的热稳定性(5%的失重温度,温度超过417°C)和电化学性能(窄带隙的可逆氧化还原过程),较高的HOMO能级(〜5.1 eV),使其成为太阳能电池制造中有希望的候选材料。具有这些聚合物作为电子给体和(6,6)-苯基-C 71-丁酸甲酯(PC )的体异质结太阳能电池71 BM)为电子受体表现出高的V OC(0.91-0.95 V)和1.69%为好功率转换效率(PCE)PEtCzTB,为2.01%PPhCzTB,和2.42%PTPACzTB。