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坚固的红色吸收器捐赠器-接受器房吸收器光开器

Abbey M Philip¹, Marie E Krogh¹, Bo W Laursen¹

¹Nano-Science Center & Department of Chemistry, University of Copenhagen, Copenhagen, 2100, Denmark.

Chemistry (Weinheim an der Bergstrasse, Germany)

|March 27, 2024

概括

捐赠者-接受者斯坦豪斯吸附体 (DASAs) 显示出对固态应用的前景. 为低基态电荷分离优化分子设计,提高了薄膜中的可逆光交换和光稳定性.

科学领域:

有机化学有机化学
材料科学材料科学材料科学
摄影化学的使用.

背景情况:

捐赠者-受体斯坦豪斯附带体 (DASA) 是负光染色体,具有多功能合成和溶液状态光交换.
在薄膜等固态应用中,强大的性能对于技术进步至关重要.

研究的目的:

为DASA设计开发一个优化的分子框架.
引入和评估与现有的第二代印林供体相比,一种新型的印林供体 (D3).
为了理解结构-功能关系控制DASA光交换在固态.

主要方法:

系统合成DASA衍生物,具有不同强度的供体.
在溶液和薄膜状态下对DASA性能进行光物理表征.
结构与属性关系分析侧重于地面电荷分离和光稳定性.

主要成果:

在DASA中较低的基态电荷分离对于强大的可逆光交换和更好的光稳定性至关重要.
更强大的电子捐赠者和更高的基态电荷分离导致光热静止状态人口减少和光稳定性降低.
与未被替代的印林DASA (D1A3) 相比,印林DASA (D3A3) 呈现出红色转移和更好的光稳定性,尽管基态极化较小.

结论:

阐明了在固态薄膜中增强DASA性能的分子设计原理.
尽量减少地面电荷分离是实现DASA材料中稳定和可逆光色的关键.
在聚合物薄膜中影响DASA光交换的因素需要仔细考虑,而不仅仅是溶液的行为.

关键词:

捐赠者-接受者斯坦豪斯吸毒者照片交换机照片交换机聚合物薄膜聚合物薄膜红灯光切换红灯光切换红灯光切换结构-功能关系结构-功能关系

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