http://hdl.handle.net/20.500.12128/23698
Tytuł: | Highly efficient green up-conversion emission from fluoroindate glass nanoparticles functionalized with a biocompatible polymer |
Autor: | Jimenez, G. Lesly Shrestha, Binita Porter, Tyron Starzyk, Bartłomiej Lesniak, Magdalena Kuwik, Marta Kochanowicz, Marcin Szumera, Magdalena Lisiecki, R. Dorosz, D. |
Słowa kluczowe: | Up-conversion nanoparticles; fluoroindate glass; nanoparticles functionalized; biocompatible polymer |
Data wydania: | 2022 |
Źródło: | RSC Advances, Vol. 12, iss. 31 (2022) s. 20074-20079 |
Abstrakt: | Up-conversion nanoparticles have garnered lots of attention due to their ability to transform low energy light (near-infrared) into high-energy (visible) light, enabling their potential use as remote visible light nano-transducers. However, their low efficiency restricts their full potential. To overcome this disadvantage, fluoroindate glasses (InF3) doped at different molar concentrations of Yb3+ and Er3+ were obtained using the melting–quenching technique, reaching the highest green emission at 1.4Yb and 1.75Er (mol%), which corresponds to the 4S3/2 / 4I15/2 (540–552 nm) transition. The particles possess the amorphous nature of the glass and have a high thermostability, as corroborated by thermogravimetric assay. Furthermore, the spectral decay curve analysis showed efficient energy transfer as the rare-earth ions varied. This was corroborated with the absolute quantum yield (QY) obtained (85%) upon excitation at 385 nm with QYEr ¼ 17% and QYYb ¼ 68%. Additionally, InF3–1.4Yb–1.75Er was milled and functionalized using poly(ethylene glycol) to impart biocompatibility, which is essential for biomedical applications. Such functionalization was verified using FTIR, TG/DSC, and XRD. |
URI: | http://hdl.handle.net/20.500.12128/23698 |
DOI: | 10.1039/d2ra03171j |
ISSN: | 2046-2069 |
Pojawia się w kolekcji: | Artykuły (WNŚiT) |
Plik | Opis | Rozmiar | Format | |
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Jimenez_Highly_efficient_green.pdf | 1,25 MB | Adobe PDF | Przejrzyj / Otwórz |
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