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电活性共价有机框架使光刺激响应装置成为可能

Yizhou Yang¹, Amritha P Sandra¹, Alexander Idström²

¹Department of Chemistry and Molecular Biology, University of Gothenburg, 41296 Gothenburg, Sweden.

Journal of the American Chemical Society

|August 25, 2022

概括

高晶的二维共价有机框架 (2D COF) 增强有机半导体的导电性,并使光敏的记忆器件成为可能. 这些电活性,多孔材料为信息存储应用提供先进的电子功能.

科学领域:

材料科学
有机电子
纳米技术

背景情况:

二维共价有机框架 (2D COF) 具有类似于石墨烯的结构,具有调节性,高孔径和电活性.
将这些特征结合在2D COF中可以产生复杂的电子功能.
现有的应用受到了提高导电性和刺激反应性质的材料的需求的限制.

研究的目的:

为先进的电子应用设计和合成高晶电活性二维COF (BDFamide-Tp).
研究该材料在有机半导体中的接口合和导电性增强的潜力.
探索可光切换分子在光响应记忆装置的COF中的集成.

主要方法:

合成BDFamide-Tp,一种具有规律孔径 (1.35纳米宽度) 的高晶体2DCOF.
制造光滑的COF薄膜,并通过界面剂评估它们对有机半导体导电性的影响.
将螺旋分子封装到COF矩阵中以创建光响应装置.

主要成果:

BDFamide-Tp薄膜通过接口剂增加了有机半导体的导电性10.
在COF中包含螺旋的设备对UV和Vis光有不同的反应,电流输出比率是100倍.
这些设备表现出可逆光刺激响应和可靠的记忆,其状态可以通过光进行重新编程.

结论:

2D COF中的电活性和多孔性的结合使其能够实现复杂的电子功能.
BDFamide-Tp是开发先进电子设备的有希望的材料,包括用于信息存储的设备.
这项工作突显了二维COF在创建下一代电子应用中的潜力.

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