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一种高度导电的n型聚乙烯衍生物:分子重量对n型兴奋剂行为和热电性能的影响

Sihui Deng^1,2, Jian Liu^1,2, Bin Meng¹

¹State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.

ACS applied materials & interfaces

|September 13, 2023

概括

增加n型合聚合物的分子量 (n-PT2) 提高了与剂的混合性,改善了电荷载体和热电性能. 这种分子量调节为优化有机热电材料提供了一个可行的策略.

科学领域:

材料科学材料科学材料科学
有机电子有机电子
热电学是一种热电学.

背景情况:

有机热电材料为废热回收提供了潜力.
调整聚合物特性对于提高热电性能至关重要.
分子重量显著影响聚合物特性和兴奋剂效率.

研究的目的:

研究n型联聚合物 (n-PT2) 的分子量对分子兴奋剂的影响.
为了评估分子质量对热电参数的影响.
建立分子重量,兴奋剂和热电性能之间的相关性.

主要方法:

用TDAE和N-DMBI剂对n-PT2进行分子注.
电荷载体度和移动性的特征.
测量电导率和西贝克系数.
分析使用兴奋剂时的晶体结构和形态变化.

主要成果:

较高分子量的n-PT2表现出与剂的混合性改善,导致电荷载体增加.
具有较高分子量的聚合物对兴奋剂入侵和充电具有更大的耐受性.
实现了优化的导电性和功率因子值:144 S cm-1/75.0 μW m-1 K-2 (TDAE) 和75.4 S cm-1/98.5 μW m-1 K-2 (N-DMBI).

结论:

调节分子量为n型有机热电器的导电性和Seebeck系数提供了协同控制.
分子重量是提高n型有机热电材料性能的一个关键参数.
本研究提出了一种可行的方法,通过聚合物设计来提高热电设备的效率.

关键词:

导电性聚合物中的导电性聚合物.分子重量调节的分子量规则.在n-doping中使用.n型聚乙烯聚乙烯的使用.有机热电材料有机热电材料

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