Institute of Materials for Electronics and Energy Technology (I-MEET), Friedrich-Alexander-University Erlangen-Nuremberg, Martensstrasse 7, 91058 Erlangen, Germany.
ACS Appl Mater Interfaces. 2013 Jun 26;5(12):5609-16. doi: 10.1021/am400923b. Epub 2013 Jun 12.
Ternary composite inverted organic solar cells based on poly(3-hexylthiophen-2,5-diyl) (P3HT) and phenyl-C61-butyric acid methyl ester (PCBM) blended with two different near-infrared absorbing benzannulated aza-BODIPY dyes, difluoro-bora-bis-(1-phenyl-indoyl)-azamethine (1) or difluoro-bora-bis-(1-(5-methylthiophen)-indoyl)-azamethine (2), were constructed and characterized. The amount of these two aza-BODIPY dyes, within the P3HT and PCBM matrix, was systematically varied, and the characteristics of the respective devices were recorded. Although the addition of both aza-BODIPY dyes enhanced the absorption of the blends, only the addition of 1 improved the overall power conversion efficiency (PCE) in the near-infrared (IR) region. The present work paves the way for the integration of near-infrared absorbing aza-BODIPY derivatives as sensitizers in ternary composite solar cells.
基于聚（3-己基噻吩-2,5-二基）（P3HT）和苯并-C61-丁酸甲酯（PCBM）与两种不同近红外吸收苯并并氮杂 BODIPY 染料二氟硼双（1-苯基吲哚基）吖嗪（1）或二氟硼双（1-（5-甲基噻吩）吲哚基）吖嗪（2）共混的三元复合倒置有机太阳能电池进行了构建和表征。在 P3HT 和 PCBM 基质中系统地改变了这两种氮杂 BODIPY 染料的量，并记录了相应器件的特性。尽管添加这两种氮杂 BODIPY 染料都增强了混合物的吸收，但只有添加 1 才能提高近红外（IR）区域的整体功率转换效率（PCE）。本工作为将近红外吸收氮杂 BODIPY 衍生物作为敏化剂整合到三元复合太阳能电池中铺平了道路。
