Triethylene glycol, a common side chain, is attached to two different dye moieties, diketopyrrolopyrrole (DPP) and isoindigo (II), and their bromo derivative monomers are copolymerized, respectively, with common bisstannyl alkylated bithiophene via Stille coupling. The resulting donor–acceptor low‐bandgap copolymers, namely, PTDPP‐DT and PTII‐DT, are rationally deigned and synthesized conjugated polymeric systems suitable for doping. Both polymers are successfully investigated as single‐component and composite‐system‐based electrochemical transistors and light‐emitting electrochemical cells. A PTDPP‐DT thin film exhibits relatively high electrical conductivity of up to 80 S cm⁻¹ in the electrochemically doped state, whereas PTII‐DT thin film prevents the macroscopic charge transport due to a large‐scale crystalline disorientation. Upon evaluating both polymers as active conjugated materials in light‐emitting electrochemical cells, they both exhibit emission under efficient electron/hole doping conditions.

中文翻译：

---

三乙二醇替代二酮吡咯并吡咯和异靛蓝染料的供体-受体共聚物，用于有机发光电化学电池和晶体管

共同的侧链三甘醇连接到两个不同的染料部分，二酮吡咯并吡咯（DPP）和异靛蓝（II），它们的溴衍生物单体分别通过Stille偶联与常见的双锡烷基烷基化联噻吩共聚。得到的供体-受体低带隙共聚物，即PTDPP-DT和PTII-DT，经过合理设计，合成了适用于掺杂的共轭聚合物体系。两种聚合物均已成功作为单组分和复合系统电化学晶体管以及发光电化学电池进行了研究。PTDPP-DT薄膜具有相对较高的电导率，最高可达80 S cm ^-1在电化学掺杂状态下，而PTII-DT薄膜可防止由于大规模晶体取向失调而引起的宏观电荷传输。评估这两种聚合物作为发光电化学电池中的活性共轭材料后，它们都在有效的电子/空穴掺杂条件下表现出发射。