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基于磷酸酯基的醇溶性六芴基苯的合成及其在倒置聚合物太阳能电池中的应用

Synthesis of alcohol soluble hexakis(fluoren-2-yl)benzene based on phosphate groups and their application in inverted polymer solar cells

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【Author】 Yuan Liu;Wenjun Zhang;Junfeng Fang;Chuluo Yang;Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials;Hubei Key Laboratory on Organic and Polymeric Optoelectronic Materials;College of Chemistry and Molecular Sciences,Wuhan University;Ningbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences;

【机构】有机化工新材料湖北省协同创新中心；湖北省有机高分子光电功能材料重点实验室；武汉大学化学与分子科学学院；中国科学院宁波材料技术与工程研究所；

【摘要】本文报道了两个基于六芴基苯为中心核的星型分子Tp0和Tp1.将磷酸酯基团引入芴的侧链,保证了分子的醇溶性,同时由于磷酸酯极性基团形成界面偶极矩,极大地降低了ITO电极的功函数.将Tp0和Tp1分子应用于倒置聚合物太阳能器件,与无界面材料的器件相比提升了开路电压(V_oc)和填充因子（FF）,基于Tp0和Tp1为界面材料的器件分别实现了5.30%和5.12%的光电转换效率.更多还原

【Abstract】 Two star-shaped oligofluorenes with hexakis(fluoren-2-yl)benzene as core are designed and synthesized, namely Tp0 and Tp1. Phosphate groups are attached to the side chain of fluorene units of Tp0 and Tp1 and enable them alcohol solubility. Owing to the interfacial dipole formed by the phosphate groups, the work function of ITO reduced effectively. When utilized in the inverted polymer solar cells, the Voc and FF increased compared with the device without interlayer. PCEs up to 5.30% and 5.12% are achieved with Tp0 and Tp1 as the interlayers, respectively.更多还原

【关键词】磷酸酯基；醇溶性；界面材料；聚合物太阳能电池；
【Key words】 phosphate group； alcohol soluble； interlayer； polymer solar cells；

【基金】国家重点基础研究发展计划(编号:2013CB834805);国家自然科学基金(编号:21572171,51125013)资助项目

【文献出处】中国科学:化学 ,Scientia Sinica(Chimica) , 编辑部邮箱 ,2016年05期

【分类号】O621.3;TM914.4
【下载频次】94

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