| Autor: |
Ruihong Liu, Dongzhi Liu, Xiang Ma |
| Jazyk: |
angličtina |
| Rok vydání: |
2025 |
| Předmět: |
|
| Zdroj: |
Green Chemical Engineering, Vol 6, Iss 1, Pp 1-5 (2025) |
| Druh dokumentu: |
article |
| ISSN: |
2666-9528 |
| DOI: |
10.1016/j.gce.2024.03.004 |
| Popis: |
Here, an innovative approach to achieve near-infrared (NIR) long-lived circularly polarized luminescence (CPL) in amorphous organic polymer materials was achieved. By co-doping bi-naphthalene derivative R/S-BPN as energy donors with porphyrin derivative TPPOH as energy acceptor into PVA polymer matrix, the NIR long-lifetime fluorescence was successfully realized through the principles of triplet-to-singlet Förster resonance energy transfer (TS-FRET). Photophysical characterizations revealed distinct room temperature phosphorescence (RTP) emission peaks and phosphorescence lifetimes for different donor-acceptor ratios. The TS-FRET process facilitated extended lifetime and red-shifted emission of the acceptor TPPOH. Moreover, employing the chiral donor R/S-BPN as chiral seeds to establish chiral environments facilitated the achievement of near-infrared CPL. These findings offer a novel and practical strategy for achieving long-wavelength and long-lifetime CPL fluorescence without complex molecular engineering, presenting potential applications in various technological fields. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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