通过在基于diketopyrrolopyrrole的合聚合物中进行战略替代来调节光电子性能
Shifan Wang1, Chen Pan2, Wenju Li2
1School of Material and Chemistry Engineering, Xuzhou University of Technology, Xuzhou 221018, China.
Langmuir : the ACS journal of surfaces and colloids
|June 9, 2025
概括
联聚合物为有机电子产品提供了具有成本效益的替代品. 这些聚合物的素工程为优化有机场效应晶体管性能和设计先进的有机半导体提供了洞察力.
科学领域:
- 材料科学 材料科学 材料科学
- 有机电子 有机电子
- 聚合物化学 聚合物化学
背景情况:
- 联聚合物是有机电子产品中化聚合物的经济有效替代品.
- 在化聚合物中对有机场效应晶体管 (OFET) 性能的优化策略尚未得到充分研究.
研究的目的:
- 为了研究分子结构和OFET性能之间的关系,在化二甲基 (DPP) 基共聚物中.
- 为了探索的结合对聚合物特性和设备性能的影响.
主要方法:
- 三种化DPP基共聚合物的合理设计和合成 (PDPP-TBT,PDPP-TBTCl和PDPP-TBTCl2).
- 有机场效应晶体管 (OFET) 的制造和表征.
- 对分子结构和电子性质的计算研究.
主要成果:
- 与PDPP-TBTCl2 (0.003 cm2 V−1 s−1) 相比,PDPP-TBTCl2 (0.003 cm2 V−1 s−1) 中的减少导致孔移动性减弱 (0.011 cm2 V−1 s−1).
- 的结合诱导了脊柱扭曲 (0-42°),破坏了聚合物平面性,降低了最高占有分子轨道 (HOMO) 能量水平 (-5.49 eV对于PDPP-TBTCl).
- 在添加时观察到增强的热稳定性.
结论:
- 分子结构,特别是含量,显著影响OFET中合聚合物的性能.
- 素工程是一种可行的策略,用于调整电子属性并增强有机半导体的热稳定性.
- 本研究提供了通过战略素修饰设计高性能有机半导体的见解.
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