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基于thiazole-Flanked Para-Azaquinodimethane的有机聚合物半导体:合成和光电子特性

Jasmine P Jacob¹, Bharath Dyaga¹, Mahtab Miralaei²

¹Laboratoire de Physico-Chimie des Matériaux et des Electrolytes pour l'Energie (PCM2E), EA6299, Université de Tours, Tours, 37200, France.

Chemistry, an Asian journal

|June 23, 2025

概括

通过使用NS非共价相互作用合成了新的状聚合物 (PAQM-TTTz,PAQM-TzTTz),以增强有机半导体聚合物. 与参考聚合物相比,这些聚合物表现出较少的混乱,但电荷载体的移动性较低.

科学领域:

材料科学材料科学材料科学
聚合物化学聚合物化学
有机电子有机电子

背景情况:

通过非共价相互作用修改聚合物骨干是推动有机半导体聚合物的关键.
醇单元可以通过特定的相互作用影响聚合物特性.

研究的目的:

设计和合成包含 thiazole 单元的新型状聚合物.
调查 thiazole 纳入对聚合物特性的影响,包括光电子特性,热稳定性和骨干平面性.
探索NS非共价相互作用在控制聚合物行为的作用.

主要方法:

合成非对称和对称的 thiazole-flanked para-azaquinodimethane (p-AQM) 聚合物 (PAQM-TTTz,PAQM-TzTTz) 和一个参考聚合物 (PAQM-TTT).
光电子属性的表征,包括双频吸收和频段间隙的确定.
密度函数理论 (DFT) 计算分析聚合物骨干结构和非共价相互作用.
场效应晶体管的制造和测试,以评估电荷载体的移动性.

主要成果:

PAQM-TTTz和PAQM-TzTTz表现出双频吸收,这表明由于增强的分子间相互作用而导致预聚合.
这两种新型聚合物都显示出低频段间隙.
DFT研究证实, thiazole 单元通过 NS 非共价相互作用减少扭曲障碍,而不会改变相邻的 thiophene 键长度.
尽管失序减少,但PAQM-TTTz和PAQM-TzTTz的电荷载体移动性低于PAQM-TTT,这是由于脊柱电子丰富度减少.

结论:

NS非共价相互作用对于调整化聚合物的特性是有价值的.
结合 thiazole 单元为设计和控制基于 p-AQM 的状半导体聚合物提供了一个替代策略.
在增强结构秩序的同时, thiazole 单元可以影响电荷传输动态.

关键词:

这就是BLALA.螺旋针凝结凝结的方法非共价相互作用的非共价相互作用准-阿扎奎因二甲.状聚合物是一种状聚合物.

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