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Facile synthesis of NaYF4:Ln/NaYF4:Eu composite with up-conversion and down-shifting luminescence
- Source :
- Journal of Photochemistry and Photobiology A: Chemistry. 391:112388
- Publication Year :
- 2020
- Publisher :
- Elsevier BV, 2020.
-
Abstract
- Herein, a series of novel dual-mode NaYF4:Ln/NaYF4:Eu (Ln = Yb, Er, Tm) composites involving up-conversion and down-shifting luminescence have been prepared by a facile synthetic method. X-ray diffraction, scanning electron microscopy, transmission electron microscopy, energy dispersive X-ray analysis, up-conversion and down-shifting fluorescence spectrometer were used to characterize the materials. By doping different lanthanide ions and tailoring the molar ratio of the doped lanthanide ions, three kinds of composites were obtained which could exhibit three-primary-color (red-green-blue, abbreviating as RGB) up-conversion luminescence under the irradiation of 980 nm laser, and generate red down-shifting color under the excitation of 393 nm. The composites show excellent photoluminescence properties, which attribute to NaYF4 served as a major matrix for both the up-conversion and down-shifting materials. Moreover, the work provides a promising material for anti-counterfeiting application.
- Subjects :
- Lanthanide
Photoluminescence
Chemistry
Scanning electron microscope
General Chemical Engineering
Doping
General Physics and Astronomy
02 engineering and technology
General Chemistry
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
Ion
Transmission electron microscopy
Physical chemistry
Irradiation
0210 nano-technology
Luminescence
Subjects
Details
- ISSN :
- 10106030
- Volume :
- 391
- Database :
- OpenAIRE
- Journal :
- Journal of Photochemistry and Photobiology A: Chemistry
- Accession number :
- edsair.doi...........0ebea09bf2b85502ea21ff6c9359fdd4
- Full Text :
- https://doi.org/10.1016/j.jphotochem.2020.112388