| Keyword search (4,163 papers available) | ![]() |
"Mandl GA" Authored Publications:
| Title: | Upconversion Luminescence through Cooperative and Energy-Transfer Mechanisms in Yb3+ -Metal-Organic Frameworks | ||||
| Authors: | Xie Y, Sun G, Mandl GA, Maurizio SL, Chen J, Capobianco JA, Sun L | ||||
| Link: | https://pubmed.ncbi.nlm.nih.gov/36437239/ | ||||
| DOI: | 10.1002/anie.202216269 | ||||
| Publication: | Angewandte Chemie (International ed. in English) | ||||
| Keywords: | Cooperative Luminescence; Energy Transfer; Lanthanides; Metal-Organic Frameworks; Upconversion Luminescence; | ||||
| PMID: | 36437239 | Category: | Date Added: | 2022-12-19 | |
| Dept Affiliation: |
CNSR
1 Department of Physics, College of Sciences, Shanghai University, 200444, Shanghai, China. 2 Department of Chemistry, College of Sciences, Shanghai University, 200444, Shanghai, China. 3 School of Materials Science and Engineering, Shanghai University, 200444, Shanghai, China. 4 Department of Chemistry and Biochemistry and Centre for NanoScience Research, Concordia University, H4B 1R6, Montreal, QC, Canada. |
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Description: |
Lanthanide-doped metal-organic frameworks (Ln-MOFs) have versatile luminescence properties, however it is challenging to achieve lanthanide-based upconversion luminescence in these materials. Here, 1,3,5-benzenetricarboxylic acid (BTC) and trivalent Yb3+ ions were used to generate crystalline Yb-BTC MOF 1D-microrods with upconversion luminescence under near infrared excitation via cooperative luminescence. Subsequently, the Yb-BTC MOFs were doped with a variety of different lanthanides to evaluate the potential for Yb3+ -based upconversion and energy transfer. Yb-BTC MOFs doped with Er3+ , Ho3+ , Tb3+ , and Eu3+ ions exhibit both the cooperative luminescence from Yb3+ and the characteristic emission bands of these ions under 980 nm irradiation. In contrast, only the 497 nm upconversion emission band from Yb3+ is observed in the MOFs doped with Tm3+ , Pr3+ , Sm3+ , and Dy3+ . The effects of different dopants on the efficiency of cooperative luminescence were established and will provide guidance for the exploitation of Ln-MOFs exhibiting upconversion. |



