Colorimetry of Luminescent Lanthanide Complexes
Europium, terbium, dysprosium, and samarium are the main trivalent lanthanide ions emitting in the visible spectrum. In this work, the potential of these ions for colorimetric applications and colour reproduction was studied. The conversion of spectral data to colour coordinates was undertaken for t...
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| Format: | Article |
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MDPI AG
2020-09-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/25/17/4022 |
| _version_ | 1797554718921195520 |
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| author | Julien Andres Anne-Sophie Chauvin |
| author_facet | Julien Andres Anne-Sophie Chauvin |
| author_sort | Julien Andres |
| collection | DOAJ |
| description | Europium, terbium, dysprosium, and samarium are the main trivalent lanthanide ions emitting in the visible spectrum. In this work, the potential of these ions for colorimetric applications and colour reproduction was studied. The conversion of spectral data to colour coordinates was undertaken for three sets of Ln complexes composed of different ligands. We showed that Eu is the most sensitive of the visible Ln ions, regarding ligand-induced colour shifts, due to its hypersensitive transition. Further investigation on the spectral bandwidth of the emission detector, on the wavelengths’ accuracy, on the instrumental correction function, and on the use of incorrect intensity units confirm that the instrumental correction function is the most important spectrophotometric parameter to take into account in order to produce accurate colour values. Finally, we established and discussed the entire colour range (gamut) that can be generated by combining a red-emitting Eu complex with a green-emitting Tb complex and a blue fluorescent compound. The importance of choosing a proper white point is demonstrated. The potential of using different sets of complexes with different spectral fingerprints in order to obtain metameric colours suitable for anti-counterfeiting is also highlighted. This work answers many questions that could arise during a colorimetric analysis of luminescent probes. |
| first_indexed | 2024-03-10T16:36:02Z |
| format | Article |
| id | doaj.art-91bcf33555b441e2a9a4618809f489e8 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-10T16:36:02Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-91bcf33555b441e2a9a4618809f489e82023-11-20T12:25:16ZengMDPI AGMolecules1420-30492020-09-012517402210.3390/molecules25174022Colorimetry of Luminescent Lanthanide ComplexesJulien Andres0Anne-Sophie Chauvin1Section of Chemistry and Chemical Engineering, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, SwitzerlandSection of Chemistry and Chemical Engineering, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, SwitzerlandEuropium, terbium, dysprosium, and samarium are the main trivalent lanthanide ions emitting in the visible spectrum. In this work, the potential of these ions for colorimetric applications and colour reproduction was studied. The conversion of spectral data to colour coordinates was undertaken for three sets of Ln complexes composed of different ligands. We showed that Eu is the most sensitive of the visible Ln ions, regarding ligand-induced colour shifts, due to its hypersensitive transition. Further investigation on the spectral bandwidth of the emission detector, on the wavelengths’ accuracy, on the instrumental correction function, and on the use of incorrect intensity units confirm that the instrumental correction function is the most important spectrophotometric parameter to take into account in order to produce accurate colour values. Finally, we established and discussed the entire colour range (gamut) that can be generated by combining a red-emitting Eu complex with a green-emitting Tb complex and a blue fluorescent compound. The importance of choosing a proper white point is demonstrated. The potential of using different sets of complexes with different spectral fingerprints in order to obtain metameric colours suitable for anti-counterfeiting is also highlighted. This work answers many questions that could arise during a colorimetric analysis of luminescent probes.https://www.mdpi.com/1420-3049/25/17/4022lanthanideeuropiumterbiumsamariumdysprosiumluminescence |
| spellingShingle | Julien Andres Anne-Sophie Chauvin Colorimetry of Luminescent Lanthanide Complexes Molecules lanthanide europium terbium samarium dysprosium luminescence |
| title | Colorimetry of Luminescent Lanthanide Complexes |
| title_full | Colorimetry of Luminescent Lanthanide Complexes |
| title_fullStr | Colorimetry of Luminescent Lanthanide Complexes |
| title_full_unstemmed | Colorimetry of Luminescent Lanthanide Complexes |
| title_short | Colorimetry of Luminescent Lanthanide Complexes |
| title_sort | colorimetry of luminescent lanthanide complexes |
| topic | lanthanide europium terbium samarium dysprosium luminescence |
| url | https://www.mdpi.com/1420-3049/25/17/4022 |
| work_keys_str_mv | AT julienandres colorimetryofluminescentlanthanidecomplexes AT annesophiechauvin colorimetryofluminescentlanthanidecomplexes |