Temperature-Sensitive Chameleon Luminescent Films Based on PMMA Doped with Europium(III) and Terbium(III) Anisometric Complexes
The spin-coating technique was used to produce composite films consisting of PMMA polymer doped with anisometric complexes of Eu(III) and Tb(III). It was found that an increase in the content of Tb<sup>3+</sup> complexes intensifies emission of both ions due to the intermolecular energy...
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MDPI AG
2022-07-01
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| Series: | Inorganics |
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| Online Access: | https://www.mdpi.com/2304-6740/10/7/94 |
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| author | Yuriy G. Galyametdinov Aleksandr S. Krupin Andrey A. Knyazev |
| author_facet | Yuriy G. Galyametdinov Aleksandr S. Krupin Andrey A. Knyazev |
| author_sort | Yuriy G. Galyametdinov |
| collection | DOAJ |
| description | The spin-coating technique was used to produce composite films consisting of PMMA polymer doped with anisometric complexes of Eu(III) and Tb(III). It was found that an increase in the content of Tb<sup>3+</sup> complexes intensifies emission of both ions due to the intermolecular energy transfer from the Tb(III) complex to the Eu(III) complex, which results in the increase in the relative luminescence quantum yield of Eu(III) ion by 36%. The temperature sensitivity of the film luminescence intensity and lifetime in the range of 296–363 K was investigated. The maximum relative sensitivity of the films reaches 5.44% × K<sup>−1</sup> and exceeds that of all known lanthanide-containing thermal sensors designed for measuring physiological temperatures. In combination with changing luminescence color, such a sensitivity makes these films promising colorimetric thermal sensors for in situ temperature measurements. |
| first_indexed | 2024-03-09T03:20:24Z |
| format | Article |
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| issn | 2304-6740 |
| language | English |
| last_indexed | 2024-03-09T03:20:24Z |
| publishDate | 2022-07-01 |
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| series | Inorganics |
| spelling | doaj.art-7ab77c72ca804a6986c480bb40f003d22023-12-03T15:11:26ZengMDPI AGInorganics2304-67402022-07-011079410.3390/inorganics10070094Temperature-Sensitive Chameleon Luminescent Films Based on PMMA Doped with Europium(III) and Terbium(III) Anisometric ComplexesYuriy G. Galyametdinov0Aleksandr S. Krupin1Andrey A. Knyazev2Department of Physical and Colloid Chemistry, Kazan National Research Technological University, 68 Karl Marx Street, 420015 Kazan, RussiaDepartment of Physical and Colloid Chemistry, Kazan National Research Technological University, 68 Karl Marx Street, 420015 Kazan, RussiaDepartment of Physical and Colloid Chemistry, Kazan National Research Technological University, 68 Karl Marx Street, 420015 Kazan, RussiaThe spin-coating technique was used to produce composite films consisting of PMMA polymer doped with anisometric complexes of Eu(III) and Tb(III). It was found that an increase in the content of Tb<sup>3+</sup> complexes intensifies emission of both ions due to the intermolecular energy transfer from the Tb(III) complex to the Eu(III) complex, which results in the increase in the relative luminescence quantum yield of Eu(III) ion by 36%. The temperature sensitivity of the film luminescence intensity and lifetime in the range of 296–363 K was investigated. The maximum relative sensitivity of the films reaches 5.44% × K<sup>−1</sup> and exceeds that of all known lanthanide-containing thermal sensors designed for measuring physiological temperatures. In combination with changing luminescence color, such a sensitivity makes these films promising colorimetric thermal sensors for in situ temperature measurements.https://www.mdpi.com/2304-6740/10/7/94Ln(III) complexesPMMAphotoluminescencethermometry |
| spellingShingle | Yuriy G. Galyametdinov Aleksandr S. Krupin Andrey A. Knyazev Temperature-Sensitive Chameleon Luminescent Films Based on PMMA Doped with Europium(III) and Terbium(III) Anisometric Complexes Inorganics Ln(III) complexes PMMA photoluminescence thermometry |
| title | Temperature-Sensitive Chameleon Luminescent Films Based on PMMA Doped with Europium(III) and Terbium(III) Anisometric Complexes |
| title_full | Temperature-Sensitive Chameleon Luminescent Films Based on PMMA Doped with Europium(III) and Terbium(III) Anisometric Complexes |
| title_fullStr | Temperature-Sensitive Chameleon Luminescent Films Based on PMMA Doped with Europium(III) and Terbium(III) Anisometric Complexes |
| title_full_unstemmed | Temperature-Sensitive Chameleon Luminescent Films Based on PMMA Doped with Europium(III) and Terbium(III) Anisometric Complexes |
| title_short | Temperature-Sensitive Chameleon Luminescent Films Based on PMMA Doped with Europium(III) and Terbium(III) Anisometric Complexes |
| title_sort | temperature sensitive chameleon luminescent films based on pmma doped with europium iii and terbium iii anisometric complexes |
| topic | Ln(III) complexes PMMA photoluminescence thermometry |
| url | https://www.mdpi.com/2304-6740/10/7/94 |
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