Abstract. We report the effect of cyclodextrin (CD) cavity size on the photovoltaic performance of dye-sensitized solar cells (DSSCs) containing inclusion complexes of tris(2,2′-bipyridyl)ruthenium(II) ([Ru(bpy)3]2 + ) in various CDs ([Ru(bpy)3]2 + / CD). The incident photon-to-current conversion efficiency (IPCE) of the [Ru(bpy)3]2 + -containing DSSC at 460 nm was calculated to be 8.1%, and this value was enhanced by the formation of [Ru(bpy)3]2 + / CD. The IPCE values of [Ru(bpy)3]2 + / α-CD-containing, [Ru(bpy)3]2 + / β-CD-containing, and [Ru(bpy)3]2 + / γ-CD-containing DSSCs were 8.8%, 8.9%, and 11.2%, respectively. It was concluded that the difference of IPCE values of [Ru(bpy)3]2 + / CD-containing DSSCs were caused by the CD cavity size, which affected the host–guest interaction between [Ru(bpy)3]2 + and the CD. These findings indicated that the cavity size of γ-CD is suitable to promote the photovoltaic conversion of DSSCs containing an unanchored photosensitizing dye with nonplanar molecular structure such as ruthenium(II) polypyridine and diimine copper(I) complexes.

中文翻译：

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环糊精腔尺寸对含非锚定钌（II）聚吡啶络合物染料敏化太阳能电池光伏性能的影响

摘要。我们报告了环糊精 (CD) 腔尺寸对包含三 (2,2'-联吡啶) 钌 (II) ([Ru(bpy)3]2 包合物的染料敏化太阳能电池 (DSSC) 光伏性能的影响+ ) 在各种 CD ([Ru(bpy)3]2 + / CD) 中。含 [Ru(bpy)3]2+ 的 DSSC 在 460 nm 处的入射光子到电流转换效率 (IPCE) 经计算为 8.1%，该值因 [Ru(bpy)3]2 3]2 + / CD。[Ru(bpy)3]2 + / α-CD-含、[Ru(bpy)3]2 + / β-CD-含、[Ru(bpy)3]2 + / γ-CD 的 IPCE 值-含 DSSC 的比例分别为 8.8%、8.9% 和 11.2%。结论是[Ru(bpy)3]2+/含CD的DSSCs的IPCE值差异是由CD腔尺寸引起的，影响了[Ru(bpy)3]2+和CD之间的主客体相互作用。光盘。