Chen Jinyang, Zhou Jie, Li Na, Ding Yubing, Ren Shiwei, Zeng Minfeng
Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, Shaoxing University, Shaoxing 312000, China.
Zhuhai-Fudan Innovation Institute, Hengqin 519000, China.
Polymers (Basel). 2023 Nov 27;15(23):4546. doi: 10.3390/polym15234546.
In this communication, we report a novel acceptor structural unit, TVDPP, that can be distinguished from classical materials based on TDPP structures. By designing a synthetic route via retrosynthetic analysis, we successfully prepared this monomer and further prepared polymer P2TVDPP with high yield using a Stille-coupling polymerization reaction. The polymer showed several expected properties, such as high molecular weight, thermal stability, full planarity, small π-π stacking distance, smooth interface, and so on. The absorption spectra and energy levels of the polymer were characterized via photochemical and electrochemical analysis. The organic field-effect transistor (OFET), which is based on P2TVDPP, exhibited excellent carrier mobility and an on/off current ratio of 0.41 cm V s and ~10, respectively, which is an important step in expanding the significance of DPP-based materials in the field of optoelectronic devices and organic electronics.
在本通讯中，我们报道了一种新型受体结构单元TVDPP，它可与基于TDPP结构的经典材料区分开来。通过逆合成分析设计合成路线，我们成功制备了该单体，并进一步利用Stille偶联聚合反应高产率地制备了聚合物P2TVDPP。该聚合物表现出若干预期性能，如高分子量、热稳定性、完全平面性、小的π-π堆积距离、光滑界面等。通过光化学和电化学分析对该聚合物的吸收光谱和能级进行了表征。基于P2TVDPP的有机场效应晶体管（OFET）表现出优异的载流子迁移率，其开/关电流比分别为0.41 cm² V⁻¹ s⁻¹和约10，这是扩大基于DPP的材料在光电器件和有机电子领域重要性的重要一步。
