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- Title
Enabling nonconjugated polyesters emit full-spectrum fluorescence from blue to near-infrared.
- Authors
Chu, Bo; Liu, Xiong; Xiong, Zuping; Zhang, Ziteng; Liu, Bin; Zhang, Chengjian; Sun, Jing Zhi; Yang, Qing; Zhang, Haoke; Tang, Ben Zhong; Zhang, Xing-Hong
- Abstract
Near-infrared luminophores have many advantages in advanced applications, especially for structures without π-conjugation aromatic rings. However, the fabrication of red clusteroluminogens from nonconjugated polymers is still a big challenge, let alone the near-infrared clusteroluminogens. Here, we develop nonconjugated luminophores with full-spectrum from blue to near-infrared light (470 ~ 780 nm), based on color phenomenon of nonconjugated polyesters synthesized from the amine-initiated copolymerization of epoxides and cyclic anhydrides. We reveal that amines act as initiators attached to polymer chain ends. The formation of various amine-ester complexes in polyesters induces red to near-infrared light, conceptually, amine-ester complexed clusteroluminescence via intra/inter-chain charge transfer. Significantly, emission colors can be easily tuned by the contents and types of amines, microstructures of polyesters, and their concentration. This work provides a low-cost, scalable platform and strategy for the production of high-efficiency, multicolor luminescent materials. Near-infrared luminescence is useful for advance applications, but is challenging to achieve through clusteroluminescence. Here, the authors report the use of amine-initiated polyesters for amine-ester clusters with near-infrared emission.
- Subjects
LUMINOPHORES; POLYESTERS; NEAR infrared radiation; FLUORESCENCE; BLUE light; CHARGE transfer
- Publication
Nature Communications, 2024, Vol 15, Issue 1, p1
- ISSN
2041-1723
- Publication type
Article
- DOI
10.1038/s41467-023-44505-3