Design and synthesis of N-substituted perylene diimide based low band gap polymers for organic solar cell applications
作者:Savita Meena、Tauheed Mohammad、Viresh Dutta、Josemon Jacob
DOI:10.1039/c8ra05232h
日期:——
2-dioxaborolan-2-yl)-9H-carbazole M3, respectively. The copolymer P3 was synthesized by direct arylation polymerization of M1 with 4,7-bis(4-octylthiophen-2-yl)benzo[c]-1,2,5-thiadiazole M4. All the copolymers showed thermal stability greater than 380 °C as evidenced from thermogravimetric analysis. The copolymers exhibited a narrow optical band gap (1.80–2.08 eV) with their UV-visible absorption spectra
在这项研究中,我们报告了一系列新型共聚物的合成和器件研究,这些共聚物含有 N-取代的苝二酰亚胺和二辛基芴单元作为主要骨架的一部分。通过苝-3,4,9,10-四羧酸二酐与2-氨基-7-溴-9,9-二辛基芴的反应,使用一种避免非选择性溴化的简便合成方法来合成单体M1 。共聚物P1和P2是通过M1与 2,2'-(9,9-dioctyl-9 H -fluoren-2,7-diyl)bis(4,4,5,5-tetramethyl-1)的 Suzuki 缩聚反应合成的, 3,2-dioxaborolane) M2和 9-(heptadecan-9-yl)-2,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9 H -咔唑M3,分别。共聚物P3通过M1与4,7-双(4-辛基噻吩-2-基)苯并[ c ]-1,2,5-噻二唑M4的直接芳基化聚合合成。热重分析表明,所有共聚物的热稳定性均大于