Implementing Defects for Ratiometric Luminescence Thermometry
In luminescence thermometry enabling temperature reading at a distance, an important challenge is to propose new solutions that open measuring and material possibilities. Responding to these needs, in the nanocrystalline phosphors of yttrium oxide Y<sub>2</sub>O<sub>3</sub> a...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-07-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/10/7/1333 |
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| author | Joanna Drabik Karolina Ledwa Łukasz Marciniak |
| author_facet | Joanna Drabik Karolina Ledwa Łukasz Marciniak |
| author_sort | Joanna Drabik |
| collection | DOAJ |
| description | In luminescence thermometry enabling temperature reading at a distance, an important challenge is to propose new solutions that open measuring and material possibilities. Responding to these needs, in the nanocrystalline phosphors of yttrium oxide Y<sub>2</sub>O<sub>3</sub> and lutetium oxide Lu<sub>2</sub>O<sub>3</sub>, temperature-dependent emission of trivalent terbium Tb<sup>3+</sup> dopant ions was recorded at the excitation wavelength 266 nm. The signal of intensity decreasing with temperature was monitored in the range corresponding to the <sup>5</sup>D<sub>4</sub> → <sup>7</sup>F<sub>6</sub> emission band. On the other hand, defect emission intensity obtained upon 543 nm excitation increases significantly at elevated temperatures. The opposite thermal monotonicity of these two signals in the same spectral range enabled development of the single band ratiometric luminescent thermometer of as high a relative sensitivity as 4.92%/°C and 2%/°C for Y<sub>2</sub>O<sub>3</sub>:Tb<sup>3+</sup> and Lu<sub>2</sub>O<sub>3</sub>:Tb<sup>3+</sup> nanocrystals, respectively. This study presents the first report on luminescent thermometry using defect emission in inorganic phosphors. |
| first_indexed | 2024-03-10T18:35:45Z |
| format | Article |
| id | doaj.art-98712f1cd732400495f7a8ab2580a20f |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T18:35:45Z |
| publishDate | 2020-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-98712f1cd732400495f7a8ab2580a20f2023-11-20T06:14:35ZengMDPI AGNanomaterials2079-49912020-07-01107133310.3390/nano10071333Implementing Defects for Ratiometric Luminescence ThermometryJoanna Drabik0Karolina Ledwa1Łukasz Marciniak2Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, 50-422 Wroclaw, PolandInstitute of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, 50-422 Wroclaw, PolandInstitute of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, 50-422 Wroclaw, PolandIn luminescence thermometry enabling temperature reading at a distance, an important challenge is to propose new solutions that open measuring and material possibilities. Responding to these needs, in the nanocrystalline phosphors of yttrium oxide Y<sub>2</sub>O<sub>3</sub> and lutetium oxide Lu<sub>2</sub>O<sub>3</sub>, temperature-dependent emission of trivalent terbium Tb<sup>3+</sup> dopant ions was recorded at the excitation wavelength 266 nm. The signal of intensity decreasing with temperature was monitored in the range corresponding to the <sup>5</sup>D<sub>4</sub> → <sup>7</sup>F<sub>6</sub> emission band. On the other hand, defect emission intensity obtained upon 543 nm excitation increases significantly at elevated temperatures. The opposite thermal monotonicity of these two signals in the same spectral range enabled development of the single band ratiometric luminescent thermometer of as high a relative sensitivity as 4.92%/°C and 2%/°C for Y<sub>2</sub>O<sub>3</sub>:Tb<sup>3+</sup> and Lu<sub>2</sub>O<sub>3</sub>:Tb<sup>3+</sup> nanocrystals, respectively. This study presents the first report on luminescent thermometry using defect emission in inorganic phosphors.https://www.mdpi.com/2079-4991/10/7/1333defectslanthanide oxideterbiumnanothermometerluminescent thermometryphosphor |
| spellingShingle | Joanna Drabik Karolina Ledwa Łukasz Marciniak Implementing Defects for Ratiometric Luminescence Thermometry Nanomaterials defects lanthanide oxide terbium nanothermometer luminescent thermometry phosphor |
| title | Implementing Defects for Ratiometric Luminescence Thermometry |
| title_full | Implementing Defects for Ratiometric Luminescence Thermometry |
| title_fullStr | Implementing Defects for Ratiometric Luminescence Thermometry |
| title_full_unstemmed | Implementing Defects for Ratiometric Luminescence Thermometry |
| title_short | Implementing Defects for Ratiometric Luminescence Thermometry |
| title_sort | implementing defects for ratiometric luminescence thermometry |
| topic | defects lanthanide oxide terbium nanothermometer luminescent thermometry phosphor |
| url | https://www.mdpi.com/2079-4991/10/7/1333 |
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