高流动性半导体二维共有机框架与p型剂
Mingchao Wang1, Mao Wang2, Hung-Hsuan Lin1
1Center for Advancing Electronics Dresden (cfaed) and Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Mommsenstrasse 4, 01062 Dresden, Germany.
Journal of the American Chemical Society
|December 17, 2020
概括
分子兴奋剂显著增强二维联有机框架 (2D c-COF) 的导电性和载体移动性. 这项研究揭示了兴奋剂减轻了散射机制,为先进的光电子设备铺平了道路.
科学领域:
- 材料科学
- 有机电子
- 纳米技术
背景情况:
- 二维合共价有机框架 (2D c-COF) 是光电子和储能半导体材料的前景.
- 了解兴奋机制对于调整2D c-COF中的电荷传输属性至关重要,但仍然在很大程度上未被探索.
研究的目的:
- 调查分子对基于金属酸的二维c-COF的影响.
- 为了阐明在兴奋剂时增强的电荷传输特性背后的机制.
主要方法:
- 合成一种基于金属酸的与酸结合的2D c-COF.
- 2D c-COF的分子兴奋剂.
- 电导率测量
- 霍尔效应测量以确定载体度和移动性.
主要成果:
- 用添加的2D c-COF (ZnPc-pz-I) 保持了结构完整性.
- 由于载体度增加,导电性增加了三倍.
- 电荷载体的流动性达到22cm2V-1s-1,这是由于电荷载体的散射时间增加.
结论:
- 分子兴奋剂是一种有效的策略,可显著提高二维c-COF的导电性和载体移动性.
- 兴奋剂减轻了散射机制,从而改善了电荷传输.
- 这项工作为评估COF的兴奋剂效应提供了框架,并突出了它们对先进光电子应用的潜力.
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