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Title: | Hybrid luminescence materials assembled by [Ln(DPA) 3 ]3- and mesoporous host through ion-pairing interactions with high quantum efficiencies and long lifetimes | Authors: | Li, QF Yue, D Lu, W Zhang, X Li, C Wang, Z |
Issue Date: | 2015 | Source: | Scientific reports, 11 2015, v. 5, no. , p. 1-9 | Abstract: | A kind of mesoporous hybrid luminescence material was assembled through the ion exchange method between [Ln(DPA)3]3- and ionic liquid functionalized SBA-15. [Ln(DPA)3]3- was successfully anchored onto positive-charge modified SBA-15 by the strong electrostatic interaction. In [Ln(DPA)3]3-, Ln 3+ ions are in 9-fold coordination through six oxygen atoms of carboxyl groups and three nitrogen atoms of pyridine units, leaving no coordination site for water molecules. Therefore the hybrids possess prominent luminescent properties, SBA-15-IMI-Tb(DPA) 3 and SBA-15-IMI-Eu(DPA) 3 exhibit high quantum yield values of 63% and 79%, and long lifetimes values of 2.38 ms and 2.34 ms, respectively. Especially, SBA-15-IMI-Eu(DPA) 3 presents a high color purity, and the red/orange intensity ratio is as high as 7.6. The excellent luminescence properties and ordered mesoporous structures give rise to many potential applications in optical and electronic areas. | Publisher: | Nature Publishing Group | Journal: | Scientific reports | EISSN: | 2045-2322 | DOI: | 10.1038/srep08385 | Rights: | This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ The following publication Li, Q., Yue, D., Lu, W. et al. Hybrid luminescence materials assembled by [Ln(DPA)3]3− and mesoporous host through ion-pairing interactions with high quantum efficiencies and long lifetimes. Sci Rep 5, 8385 (2015) is available at https://dx.doi.org/10.1038/srep08385 |
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