基于萘并二酰亚胺的胺基功能化聚合物的三组分一锅法合成及其在聚合物太阳电池中的应用

发布时间：2018-03-26 07:18

  本文选题：三组分聚合　切入点：聚合物太阳电池　出处：《化学学报》2017年08期

【摘要】：通过微波辅助炔、醛、胺三组分一锅法聚合反应合成了一系列基于萘并二酰亚胺的聚合物P1~P4,并通过核磁表征确认其结构.目标聚合物的光物理与电化学性能研究表明,由于聚合物主链共轭被打断,聚合物的吸收和能级主要由其重复单元决定.通过开尔文探针与电子顺磁共振谱研究了聚合物侧链与主链胺基不同的化学环境对其电极功函调节以及自掺杂行为的影响.发现由于主链胺基与苄基、炔丙基相连,胺基氮的电子云密度显著降低,导致聚合物形成界面偶极能力减弱,从而使其电极功函调节能力与自掺杂强度都大大降低.所有聚合物中P1具有良好的醇溶性,可被用于聚合物太阳电池的阴极界面层.以PTB7-Th:PC71BM为活性层,P1为阴极界面层的聚合物太阳电池器件的光电转换效率达到9.34%.
[Abstract]:A series of polymers based on naphthalenediimide (Naphthalenediimide) were synthesized by microwave-assisted one-pot polymerization of acetylene, aldehydes and amines, and their structures were confirmed by NMR characterization. The photophysical and electrochemical properties of the target polymers were studied. Because the conjugation of the main chain of the polymer was interrupted, The absorption and energy levels of polymers are mainly determined by their repeating units. By using Kelvin probe and electron paramagnetic resonance spectroscopy (EPR), the electrode functional regulation and self-doping behavior of polymers with different side chain and main chain amine groups have been studied by means of electron paramagnetic resonance spectroscopy (EPR). Due to the main chain amino group and benzyl group, The electron cloud density of amino nitrogen decreases significantly, which leads to the decrease of the dipole ability of the polymer interface, which greatly reduces the electrode function regulation ability and the self-doping strength. All the polymers have good alcohol solubility, and P1 has good alcohol-solubility in all polymers. It can be used in the cathode interface layer of polymer solar cells. The photoelectric conversion efficiency of polymer solar cell devices with PTB7-Th:PC71BM as the active layer and P1 as the cathode interface layer is 9.34.
【作者单位】： 华南理工大学高分子光电材料与器件研究所发光材料与器件国家重点实验室;
【基金】：国家自然科学基金(No.21490573)资助~~
【分类号】：O631.5;TM914.4
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本文编号：1666892