Table · dataset · 2026
Supplementary file 1_Seamless triple-mode luminescence thermometry in Lu3(Al4Ga1)O12:Pr: high sensitivity from 11 to 700 K.docx
Listed in HKU DataHub and figshare and Loughborough Research Repository — shown once because both records carry DOI 10.3389/fchem.2026.1924671.s001
<p>This study reports on the high-performance luminescence thermometry of a Lu<sub>3</sub>(Al<sub>4</sub>Ga<sub>1</sub>)O<sub>12</sub>:Pr (LuAGG:Pr) phosphor, demonstrating a remarkable operational range spanning from deep-cryogenic to high-temperature regimes (11–700 K).
Description
Its relative thermal sensitivity, S<sub>r</sub>, remains between 0.7% and 6.5% K<sup>−1</sup>, exceeding 1% K<sup>−1</sup> over the vast majority of this interval.
To overcome the sensitivity bottlenecks inherent to single-parameter thermometers, we propose a multi-mode thermometric strategy that leverages three distinct physical mechanisms. At cryogenic temperatures (11–120 K), the population redistribution among the Stark levels of the <sup>1</sup>D<sub>2</sub> state yields a maximum S<sub>r</sub> of 6.5% K<sup>−1</sup>. In the intermediate range (120–320 K), sensing is governed by the Boltzmann-coupled <sup>3</sup>P<sub>1</sub> and <sup>3</sup>P<sub>0</sub> states, yielding a maximum S<sub>r</sub> of 5.5% K<sup>−1</sup> when using the two-level emission ratio.
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Crucially, we demonstrate that the integration of the intensity ratio between the interconfigurational 5d→4f and <sup>1</sup>D<sub>2</sub>→<sup>3</sup>H<sub>4</sub> emissions - primarily driven by multiphonon relaxation - significantly enhances performance at elevated temperatures. While Boltzmann-type distributions show declining sensitivity above room temperature, this multiphonon-driven 5d/4f ratio revitalizes the sensor, maintaining S<sub>r</sub> > 1% K<sup>−1</sup> up to 700 K, with S<sub>r</sub> peak of 2.2% K<sup>−1</sup> at 465 K. By strategically combining these three parameters, we achieve a continuous, high-sensitivity profile across the entire 11–700 K window, establishing LuAGG:Pr as one of the most versatile Pr<sup>3+</sup> singly activated materials for advanced thermal sensing reported to date.</p>
Links
Where it is published
- DOI doi.org/10.3389/fchem.2026.1924671.s001 ↗
DOI / persistent id · from datahub hku hk
Catalogue records · 1
- OAI-PMH record api.figshare.com/v2/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai%3Af… ↗
metadata API · from datahub hku hk
Topics
- From keywords
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Provenance · 3 source records, 33 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| HKU DataHub | oai:figshare.com:article/34009122 | 8 d ago | JSON v1 |
| figshare | oai:figshare.com:article/34009122 | 7 d ago | JSON v1 |
| Loughborough Research Repository | oai:figshare.com:article/34009122 | 7 d ago | JSON v1 |
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|---|---|---|---|
| access_level | source · datahub hku hk | connector:datahub_hku_hk@1.0.0 | |
| concepts[field].anzsrc:group:3405 | mapping · figshare com | vocabulary-mapper@1.0.0 | keywords['Organic Chemistry'] |
| concepts[field].anzsrc:group:3405 | mapping · datahub hku hk | vocabulary-mapper@1.0.0 | keywords['Organic Chemistry'] |
| concepts[field].anzsrc:group:3405 | mapping · repository lboro ac uk | vocabulary-mapper@1.0.0 | keywords['Organic Chemistry'] |
| concepts[field].local:field:astronomy | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:chemistry | mapping · datahub hku hk | connector:datahub_hku_hk@1.0.0 | |
| concepts[field].local:field:chemistry | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:chemistry | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:computer-science-ai | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:computer-science-ai | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · datahub hku hk | connector:datahub_hku_hk@1.0.0 | |
| concepts[field].local:field:economics-finance | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:economics-finance | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:engineering | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:engineering | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:humanities | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:humanities | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:materials-science | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
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| concepts[field].local:field:medicine-health | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:medicine-health | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:psychology-behavioral | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:social-science | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:social-science | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| description | source · datahub hku hk | connector:datahub_hku_hk@1.0.0 | /metadata/dc/description |
| license | source · datahub hku hk | connector:datahub_hku_hk@1.0.0 | /metadata/dc/rights |
| publication_date | source · datahub hku hk | connector:datahub_hku_hk@1.0.0 | |
| title | source · datahub hku hk | connector:datahub_hku_hk@1.0.0 | /metadata/dc/title |