Details
| Original language | English |
|---|---|
| Article number | 117970 |
| Journal | Journal of Luminescence |
| Volume | 235 |
| Early online date | 22 Feb 2021 |
| Publication status | Published - Jul 2021 |
Abstract
We demonstrate a new way to manipulate and to control the RGB chromaticity of the luminescence of Ln-based metal-organic frameworks with MOF-76 structure. This new way is based on preliminary UV photostimulation. Particularly, we reveal that besides the conventional ways to control luminescence chromaticity based on alteration of chemical composition and excitation wavelengths, the chromaticity of Ln-based MOF-76 can be strongly affected by the duration of preliminary UV photostimulation. This effect was demonstrated for the set of MOF-76 samples with different chemical composition: MOF – Y (100), MOF – Y/Eu (97/3), MOF – Eu (100), MOF – Tb/Eu (96/4), MOF – Y/Tb/Eu (87/10/3), MOF – Y/Tb/Eu (85/10/5), MOF – Y/Tb/Eu (80/17/3) (here numbers in the brackets denote the atomic percentages of the corresponding metal ions with respect to the total metal ion content). Remarkably, the effect of the alteration of initial luminescence chromaticity induced by UV photostimulation has been observed only for Y containing MOF-76 samples. The new UV-photostimulated luminescence chromaticity remains stable for at least ten days.
Keywords
- Chromaticity, Energy transfer, Lanthanides, Metal-organic frameworks, Photoluminescence, RGB diagram, UV photostimulation
ASJC Scopus subject areas
- Biochemistry, Genetics and Molecular Biology(all)
- Biophysics
- Biochemistry, Genetics and Molecular Biology(all)
- Biochemistry
- Chemistry(all)
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Physics and Astronomy(all)
- Condensed Matter Physics
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In: Journal of Luminescence, Vol. 235, 117970, 07.2021.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - UV-induced alteration of luminescence chromaticity of Ln-based MOF-76
AU - Mayeuski, A. V.
AU - Poloneeva, D. Yu
AU - Toshcheva, E. A.
AU - Bardakova, A. V.
AU - Shuruhina, A. V.
AU - Emeline, A. V.
AU - Bahnemann, D. W.
N1 - Funding Information: The present study was supported by Saint-Petersburg State University (Pure ID 73032813 ). The experiments were partly carried out using equipment of the resource centers “Nanophotonics,” “Geomodel,” “X-ray Diffraction Studies,” “Chemical Analysis and Materials,” and “Optical and Laser Materials Research” of Saint-Petersburg State University Research Park.
PY - 2021/7
Y1 - 2021/7
N2 - We demonstrate a new way to manipulate and to control the RGB chromaticity of the luminescence of Ln-based metal-organic frameworks with MOF-76 structure. This new way is based on preliminary UV photostimulation. Particularly, we reveal that besides the conventional ways to control luminescence chromaticity based on alteration of chemical composition and excitation wavelengths, the chromaticity of Ln-based MOF-76 can be strongly affected by the duration of preliminary UV photostimulation. This effect was demonstrated for the set of MOF-76 samples with different chemical composition: MOF – Y (100), MOF – Y/Eu (97/3), MOF – Eu (100), MOF – Tb/Eu (96/4), MOF – Y/Tb/Eu (87/10/3), MOF – Y/Tb/Eu (85/10/5), MOF – Y/Tb/Eu (80/17/3) (here numbers in the brackets denote the atomic percentages of the corresponding metal ions with respect to the total metal ion content). Remarkably, the effect of the alteration of initial luminescence chromaticity induced by UV photostimulation has been observed only for Y containing MOF-76 samples. The new UV-photostimulated luminescence chromaticity remains stable for at least ten days.
AB - We demonstrate a new way to manipulate and to control the RGB chromaticity of the luminescence of Ln-based metal-organic frameworks with MOF-76 structure. This new way is based on preliminary UV photostimulation. Particularly, we reveal that besides the conventional ways to control luminescence chromaticity based on alteration of chemical composition and excitation wavelengths, the chromaticity of Ln-based MOF-76 can be strongly affected by the duration of preliminary UV photostimulation. This effect was demonstrated for the set of MOF-76 samples with different chemical composition: MOF – Y (100), MOF – Y/Eu (97/3), MOF – Eu (100), MOF – Tb/Eu (96/4), MOF – Y/Tb/Eu (87/10/3), MOF – Y/Tb/Eu (85/10/5), MOF – Y/Tb/Eu (80/17/3) (here numbers in the brackets denote the atomic percentages of the corresponding metal ions with respect to the total metal ion content). Remarkably, the effect of the alteration of initial luminescence chromaticity induced by UV photostimulation has been observed only for Y containing MOF-76 samples. The new UV-photostimulated luminescence chromaticity remains stable for at least ten days.
KW - Chromaticity
KW - Energy transfer
KW - Lanthanides
KW - Metal-organic frameworks
KW - Photoluminescence
KW - RGB diagram
KW - UV photostimulation
UR - http://www.scopus.com/inward/record.url?scp=85102015509&partnerID=8YFLogxK
U2 - 10.1016/j.jlumin.2021.117970
DO - 10.1016/j.jlumin.2021.117970
M3 - Article
AN - SCOPUS:85102015509
VL - 235
JO - Journal of Luminescence
JF - Journal of Luminescence
SN - 0022-2313
M1 - 117970
ER -