通过抑制兴奋剂诱导的障碍来增强合聚合物的热电特性
Suhao Wang1,2, Wenjin Zhu1, Ian E Jacobs1
1Optoelectronics Group, Cavendish Laboratory, JJ Thomson Avenue, Cambridge, CB3 0HE, UK.
Advanced materials (Deerfield Beach, Fla.)
|April 1, 2024
概括
聚乙烯共聚合物的离子交换兴奋剂增强有机电子中的电导率和功率因子. 这种方法最大限度地减少了兴奋剂诱导的障碍,使兴奋剂聚合物中有效的电荷传输成为可能.
科学领域:
- 有机电子学有机电子学
- 材料科学是一种材料科学.
- 聚合物化学 聚合物化学
背景情况:
- 兴奋剂对于有机电子设备的性能至关重要.
- 随机的剂分布会破坏聚合物微结构,限制设备的效率.
研究的目的:
- 为了调查基于聚烯的随机共聚合物的离子交换兴奋剂.
- 为了解决合聚合物中剂诱导的障碍.
- 为了提高电荷传输特性,提高电子效率.
主要方法:
- 在P[(3HT) 1-x-stat-(T) x]共聚合物 (P1-P4) 的离子交换兴奋剂.
- 电导率和功率因子测量.
- 场效应晶体管 (FET) 和霍尔效应测量.
- 草地发生率广角X射线散射 (GIWAXS) 用于结构分析.
主要成果:
- 随机共聚物P3实现了高电导率 (>400 S cm−1) 和功率系数 (>16 μW m−2 K−2).
- 在使用兴奋剂后,P3表现出明显更高的霍尔运动能力 (1.2 cm2 V-1 s-1),与P1 (0.06 cm2 V-1 s-1) 相比.
- 兴奋剂P3显示较短的平面 π-π 堆叠距离 (3.44 Å) 比兴奋剂P1 (3.68 Å).
结论:
- 离子交换兴奋剂有效地降低了聚乙烯共聚物的兴奋剂诱导障碍.
- 这种方法带来了优越的导电性和电荷传输特性.
- 该研究提供了开发高性能有机电子设备的战略.
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