Efficient organic photovoltaic cells based on thiazolothiazole and benzodithiophene copolymers with π-conjugated bridges
作者:Junhoo Park、Jong Baek Park、Jong-Woon Ha、Hea Jung Park、In-Nam Kang、Do-Hoon Hwang
DOI:10.1002/pola.29084
日期:2018.9.1
New donor–π–acceptor (D–π–A) type conjugated copolymers, poly[(4,8‐bis((2‐hexyldecyl)oxy)benzo[1,2‐b:4,5‐b′]dithiophene)‐alt‐(2,5‐bis(4‐octylthiophen‐2‐yl)thiazolo[5,4‐d]thiazole)] (PBDT‐tTz), and poly[(4,8‐bis((2‐hexyldecyl)oxy)benzo[1,2‐b:4,5‐b′]dithiophene)‐alt‐(2,5‐bis(6‐octylthieno[3,2‐b]thiophen‐2‐yl)thiazolo[5,4‐d]thiazole)] (PBDT‐ttTz) were synthesized and characterized with the aim of investigating
新的供体-π-受体(D-π-A)型共轭共聚物,聚[(4,8-双((2-己基癸基)氧基)苯并[1,2- b:4,5- b' ]二噻吩) - ALT - (2,5-双(4- octylthiophen -2-基)噻唑并[5,4- d ]噻唑)](PBDT-TTZ),和聚[(4,8-双((2-己基癸基)氧基)苯并[1,2- b:4,5- b' ]二噻吩) - ALT - (2,5-双(6- octylthieno并[3,2- b ]噻吩-2-基)噻唑并[5,4 - d[噻唑]](PBDT-ttTz)的合成和表征旨在研究其在有机光伏活性材料中的潜在适用性。共聚物PBDT-tTz通过噻吩π-桥呈锯齿状的非线性结构,而PBDT-ttTz则具有噻吩[3,2 - b ]噻吩π-桥的线性分子结构。系统地研究了PBDT-tTz和PBDT-ttTz的光学,电化学,形态和光伏特性。此外,通过使用合成的聚合物作为p型供体和[6