有机和协调聚合物的化学兴奋剂用于热电和螺旋电子应用:理论理解
Dong Wang1,2, Hongde Yu3, Wen Shi4
1Laboratory of Flexible Electronics Technology, Tsinghua University, Beijing 100084, P. R. China.
Accounts of chemical research
|July 11, 2023
概括
有机半导体 (OSCs) 的受控兴奋剂是先进电子技术的关键. 这项研究揭示了剂如何与OSC中的电荷相互作用,通过计算分析优化热电和自旋电子应用.
科学领域:
- 材料科学 材料科学 材料科学
- 凝聚物质物理学 凝聚物质物理学
- 有机电子 有机电子
背景情况:
- 对有机半导体 (OSC) 提高电子,光电子,热电和自旋电子设备的性能至关重要.
- 由于低介电常数和强的电荷网合,理解OSC中的剂 - 主体相互作用是复杂的,需要先进的计算方法.
研究的目的:
- 使用计算工具调查兴奋剂对代表性和新兴有机和协调聚合物的影响.
- 阐明用于热电和自旋电子应用的合OSC中的电荷传输和自旋偏振机制.
主要方法:
- 利用最先进的计算工具在有机和协调聚合物中模拟兴奋剂效应.
- 分析了电荷转移相互作用,带结构修改和电荷载体散射机制.
- 通过分数电荷转移在合共价有机框架 (COFs) 中研究了自旋两极化.
主要成果:
- 辅助协调聚合物的兴奋剂诱导的修饰解释了导电性和Seebeck系数的非单调温度依赖.
- 从电离化剂中选的库伦相互作用被确定为PEDOT:Tos.中的主导电荷载体散射机制.
- 在非磁性COF中通过通过分数电荷转移通过兴奋剂实现了自旋偏振,从而实现可调节的自旋电子特性.
结论:
- 剂和宿主形成一个集成的系统,其中电荷转移类型决定了自旋极化.
- 机械洞察力为优化兴奋剂水平和温度提供了指导方针,以实现高热电效率.
- 通过化学兴奋剂证明了在非激进材料中通过自旋偏振的实用途径,为灵活的自旋电子设备铺平了道路.
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