Six fractions of indene-C₆₀ bisadducts (IC₆₀BAs) with two indene pendants located at different positions of the C₆₀ cage were isolated by using the HPLC technique, in which one enantiomeric mixture was purified and the structure was confirmed by single crystal XRD analysis. It was revealed that the isolated IC₆₀BA isomers possess an elevated LUMO energy level and afford increased electron mobility, but the solar cells assembled by the isolated IC₆₀BA isomers with P3HT did not show high performance due to a serious phase separation between them. The results suggest that for high performance polymer solar cells we should consider not only the energy level matching between the donor and acceptor materials, but also the structural matching between them.

中文翻译：

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单晶茚-C ₆₀双加合物：聚合物太阳能电池的隔离和应用†

的六个馏分茚-C ₆₀ bisadducts（IC _60个BAS）与位于C的不同位置上的两个茚挂件₆₀笼，通过使用HPLC技术分离，其中一个对映体混合物进行纯化和结构通过单晶X射线衍射确认分析。结果表明，分离出的IC ₆₀ BA异构体具有较高的LUMO能级，并提供增加的电子迁移率，但由分离出的IC ₆₀组装而成的太阳能电池由于P3HT的BA异构体之间存在严重的相分离，因此它们没有表现出较高的性能。结果表明，对于高性能聚合物太阳能电池，我们不仅应考虑供体和受体材料之间的能级匹配，还应考虑它们之间的结构匹配。