Near-infrared long-lifetime emission via triplet-to-singlet Förster resonance energy transfer
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 matr...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co. Ltd.
2025-03-01
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| Series: | Green Chemical Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666952824000189 |
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| Summary: | 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. |
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| ISSN: | 2666-9528 |