4.4 Article

Dynamics of the energy transfer involved in a diarylethene-perylenebisimide dyad: comparison between the molecule and the nanoparticle level

期刊

PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
卷 22, 期 7, 页码 1673-1681

出版社

SPRINGERNATURE
DOI: 10.1007/s43630-023-00405-5

关键词

Photochromism; Fluorescence; FRET; Photodynamics; Diarylethene; Perylenebisimide

向作者/读者索取更多资源

A diarylethene-perylenebisimide (DAE-PBI) dyad with bright red emission and large ON-OFF contrast was studied, and its excited state dynamics were characterized in solution and nanoparticle suspension. Efficient energy transfer between the fluorophore and photochromic unit was demonstrated, occurring in a few hundreds of femtoseconds.
Photochromic materials are widely used to achieve fluorescence photoswitching. Understanding the energy transfer processes occurring in these systems would be an advantage for their use and better optimization of their properties. In this scope, we studied a diarylethene-perylenebisimide (DAE-PBI) dyad that presents a bright red emission and a large ON-OFF contrast, both in solution and in an aqueous suspension of nanoparticles (NPs). Using ultrafast transient absorption spectroscopy, the excited state dynamics was characterized for this dyad in THF solution and compared to its behavior in NPs state. An efficient energy transfer process between the PBI fluorophore and the DAE photochromic unit in its closed form was demonstrated, occurring in a few hundreds of femtoseconds. [Graphics]

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.4
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据