Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 minami-ohsawa, Hachioji, Tokyo 192-0397, Japan.
Org Lett. 2011 Sep 2;13(17):4574-7. doi: 10.1021/ol201770g. Epub 2011 Aug 9.
Hexylthiophene-conjugated boron-dibenzopyrromethenes with benzo[1,3,2]oxazaborinine rings, 1, that absorb near-infrared light with relatively high molecular extinction coefficients have been synthesized. The incorporation of 3-hexylthiophene-conjugated dye 1a at a blend ratio of 5 wt % into a polymeric solar cell based on a P3HT/indene-C(70) bisadduct (IC(70)BA) bulk heterojunction structure improved power conversion efficiency from 3.7 to 4.3%. The present work suggests that well-defined near-infrared absorbing BODIPY analogues can potentially be used as photosensitizers in polymeric solar cells.
已合成了具有苯并[1,3,2]恶嗪硼二吡咯甲川染料环的六噻吩-硼二吡咯甲川，1，其吸收近红外光的分子消光系数相对较高。将 3-己基噻吩-共轭染料 1a 以 5wt%的共混比掺入基于 P3HT/茚并 C(70)双加成物（IC(70)BA）体异质结结构的聚合物太阳能电池中，将功率转换效率从 3.7%提高到 4.3%。本工作表明，定义明确的近红外吸收 BODIPY 类似物有可能在聚合物太阳能电池中用作光敏剂。
