Preparation and Photophysical Study of Rhodamine–Perylenebisimide Electron Donor–Acceptor Dyad/Triads Containing Flexible Linkers
Xin Guan, Haotian Bai, Jianzhang Zhao, Yan Wan · 2026
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Description
Xin Guan and co-authors build linked dye molecules to study light-driven electron behavior in a 2026 photophysics paper. Rhodamine donors were tied to perylene acceptors by flexible chains of two lengths, forming pairs and triples. Ultrafast and nanosecond spectroscopy, electrochemistry, and quantum calculations tracked what absorbed light does next.
The excited state decayed fast and settled into a long-lived triplet state on the acceptor, lasting up to hundreds of microseconds in transfer tests. No lasting charge-separated state appeared, which rules out one hoped-for pathway. Energy transfer likely ran between the partners while electron transfer quenched the acceptor glow. Solar and lighting chemists gain design feedback: flexible linkers favor triplet formation over charge storage here. Such triplet makers suit sensing and photocatalysis roles that need long-lived excited states without heavy atoms.
Catalog record
| CREATOR | Xin Guan, Haotian Bai, Jianzhang Zhao, Yan Wan |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 37 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |