聚合物太阳能电池富勒烯衍生物受体材料的制备及其表征

作为新能源,由于有机太阳能电池具有量轻、易于大面积柔性制备等特点,最近有机聚合物太阳能电池的开发得到了越来越多的关注,其光电转化效率最高值不断被刷新,这也带动了新材料的研发。本论文设计并合成了2个噻吩-富勒烯(C60)二元结构的化合物,用作电池的受体活性材料,进一步可开发成D-A型活性材料。通过利用活性的丙二酸亚异丙酯为起始原料,与十二醇进行酯化反应,高收率的制备了丙二酸单十二烷基酯中间体,再与5,5-二羟甲基环戊c]并噻吩反应,生成对称的丙二酸双酯,最后与富勒烯C60进行Bingel反应制备2个富勒烯衍生物,其电化学性质被表征。

Preparation and Characterization of Fullerene Derivative Acceptor for Polymer Solar Cells

Recently, the development of organic polymer photovoltaic cells have attracted more and more attention as new energy source due to their light weight, ease of large scale manu- facturing, compatibility with flexible substrates, and the record of power conversion efficiency （PCE） has been constantly broken, which drives the development of new cell materials. Two new fullerene（C60） - thiophene dyads as a acceptor of cells were designed and prepared, and further D-A structure active materials can be synthesized by the polymerization of the dyads. With the Meldrum＇s acid as a starting material, the malonic acid mono ester was synthesized by esterification with dodecanol under a solvent-free condition in high yield, then reacted with 5, 5-Bis （hydroxymethyl）cyclopentae]thiophene,a symmetric malonic acid di-ester was prepared, finally two fullerene derivatives were synthesized by Bingel reaction, and its photovoltaic properties were characterized by cyclicvoltammetry （CV） and UV spectram.