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在Fe (III) 碳薄膜中的高效光诱导电荷分离

Minli Zhang¹, Catherine E Johnson¹, Aleksandra Ilic²

¹Department of Chemistry - Ångström Laboratory, Uppsala University, Box 523, SE-75120 Uppsala, Sweden.

Journal of the American Chemical Society

|August 24, 2023

概括

在铁 (III) 复合体中观察到破坏对称的电荷分离,导致高效的超快电子转移. 这一发现对于使用单一材料活性层的先进光电子设备的开发至关重要.

科学领域:

分子材料科学
光电子产品
摄影化学

背景情况:

对称性破坏电荷分离是单材料光电子的关键.
具有N-异环碳联体的铁 (III) 复合物表现出独特的2LMCT激发状态.

研究的目的:

为了研究[Fe(III) L2]PF6无形薄膜中的对称性破坏电荷分离.
探索这些材料在光电子应用中的潜力.

主要方法:

无形薄膜的制造 [Fe(III) L2]PF6.
通过可见光激发.
暂时的吸收光谱.
进行光导测量.

主要成果:

在光激发时观察到超快的电子转移和电荷分离 (<1 ps).
产生具有高效率的Fe (II) 和Fe (IV) 种.
通过光导体证明了电荷载体的收集.

结论:

纯 [Fe (III) L2] PF6 薄膜具有高效的对称性破坏电荷分离.
由于光生成的电荷载体,该材料具有光电子应用的潜力.

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