Donor–Acceptor Conjugated Polymers Based on Dithieno[3,2-<i>b</i>:3′,2′-<i>b</i>′]naphtho[1,2-<i>b</i>:5,6-<i>b</i>′]dithiophene: Synthesis and Semiconducting Properties
作者:Mu He、Weili Li、Yao Gao、Hongkun Tian、Jidong Zhang、Hui Tong、Donghang Yan、Yanhou Geng、Fosong Wang
DOI:10.1021/acs.macromol.5b02583
日期:2016.2.9
A polycyclic aromatic unit comprising six rings, i.e., 5,11-bis(2-octyldodecyl)dithieno[3,2-b:3′,2′-b′]naphtho[1,2-b:5,6-b′]dithiophene (DTNDT), was developed. Four donor–acceptor (D–A) conjugated polymers, which are named P-BT, P-2FBT, P-IID, and P-DPP, were synthesized with DTNDT as the D-unit and 2,1,3-benzothiadiazole (BT), 5,6-difluorobenzo[c][1,2,5]thiadiazole (2FBT), isoindigo (IID), and diketopyrrolopyrrole
包含六个环的多环芳族单元,即5,11-双(2-辛基十二烷基)二硫基[3,2- b:3',2'- b ']萘[1,2- b:5,6- b开发了']二噻吩(DTNDT)。四个供体-受体(d-A)共轭聚合物,其被命名为P-BT,P-2FBT,P-IID,和P-DPP,用DTNDT作为d-单元和2,1,3-苯并噻二唑(合成BT),5,6-二氟苯并[ c] [1,2,5]噻二唑(2FBT),异靛蓝(IID)和二酮吡咯并吡咯(DPP)作为A单元。所有四种聚合物均具有热稳定性,分解温度高于390°C,并显示出伪直形骨架。它们的有序薄膜是通过溶液旋铸制备的,其中共轭骨架主要在基板上采用边对边对齐。用底栅和顶接触(BGTC)有机薄膜晶体管(OTFT)来表征聚合物的半导体性能。所有四种聚合物均表现出p型传输行为,并且对于P-BT,P-2FBT,P-IID和P-DPP,空穴迁移率分别为0.023、0.078、0