used as the acceptor building block. A systematic study was performed to determine the influence of the combinations of different heteroatoms in the donor–acceptor copolymer. In bulk heterojunction solar cells, the polymer with all furan building blocks in the electron donating units, poly[(4,8-bis(5-dodecyl-2-furanyl)benzo[1,2-b:4,5-b′]difuran-2-yl)-alt-(2-ethyl-1-(3-fluorothieno[3,4-b]thiophen-2-yl)-1-hexanone)]
以苯并[1,2- b:4,5- b ']二
噻吩和苯并[1,2- b:4,5- b ']二
呋喃为
噻吩并
噻吩并[3,3] ,合成了四种新的供体-受体共聚物。将4- b ]
噻吩用作受体构件。进行了系统的研究,以确定供体-受体共聚物中不同杂原子组合的影响。在本体异质结太阳能电池中,在给电子单元中具有所有
呋喃结构单元的聚合物聚[(4,8-双(5-
十二烷基-2-
呋喃基)苯并[1,2- b:4,5- b ' ]二
呋喃-2-基) - ALT - (2-乙基-1-(-3-
氟[3,4 b ]
噻吩-2-基)-
1-己酮)](P4)(M n = 66.7 kDa),实现了5.23%的最高功率转换效率。