Optically Active Upconverting Nanoparticles with Induced Circularly Polarized Luminescence and Enantioselectively Triggered Photopolymerization
| Autor: | Pengfei Duan, Minghua Liu, Yuangang Li, Xue Jin, Xuefeng Zhu, Yutao Sang, Yonghong Shi |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Diacetylene General Engineering Enantioselective synthesis General Physics and Astronomy 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology medicine.disease_cause Photochemistry 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Wavelength Photopolymer Polymerization chemistry medicine General Materials Science Self-assembly 0210 nano-technology Luminescence Ultraviolet |
| Zdroj: | ACS nano. 13(3) |
| ISSN: | 1936-086X |
| Popis: | In this work, lanthanide-doped upconversion nanoparticles (UCNPs) showing upconverted circularly polarized luminescence were demonstrated in an organic–inorganic co-assembled system. Achiral UCNPs (NaYF4:Yb/Er or NaYF4:Yb/Tm) can be encapsulated into chiral helical nanotubes through the procedure of co-gelation. These co-gel systems display intense upconverted circularly polarized luminescence (UC-CPL) ranging from ultraviolet (UV, 300 nm) to near-infrared (NIR, 850 nm) wavelength. In addition, the UV part of UC-CPL can be used to initiate the enantioselective polymerization of diacetylene. |
| Databáze: | OpenAIRE |
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