{"title":"Enhanced red upconversion luminescence induced by Yb-Fe dimer for bifunctional biological applications in optical thermometry and photothermics","authors":"Yue Guo, Xiao-Ping Jiang, Xiao-Yu Yue, Li-Xi Wang, Qi-Tu Zhang","doi":"10.1007/s12598-024-03015-x","DOIUrl":null,"url":null,"abstract":"<div><p>The enhancement of the intensity of red upconversion (UC) emission has significant implications for biological applications. In KZnF<sub>3</sub>:Yb<sup>3+</sup>, Er<sup>3+</sup> which inherently produces high-purity red emission, the introduction of Fe<sup>3+</sup> markedly improves the UC intensity by a factor of 13. The mechanism behind the enhanced UC red luminescence is deduced to originate from the Yb<sup>3+</sup>-Fe<sup>3+</sup> dimer, as determined by first principle calculation and analysis of UC luminescence properties. The thermometry performance, based on splitting peaks of red emission, demonstrated enhanced temperature sensitivity at lower ranges. Exploring the photothermal properties, it was observed that temperature exhibited a linear correlation with pump power under a 980 nm laser, achieving levels up to 48 °C. This temperature range is ideal for applications in mild photothermal therapy (MPTT). This work elucidates the material’s potential in advanced biological applications, merging optical thermometry and photothermics, indicating its multifunctional utility.</p><h3>Graphical abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 2","pages":"1231 - 1242"},"PeriodicalIF":9.6000,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Rare Metals","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s12598-024-03015-x","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The enhancement of the intensity of red upconversion (UC) emission has significant implications for biological applications. In KZnF3:Yb3+, Er3+ which inherently produces high-purity red emission, the introduction of Fe3+ markedly improves the UC intensity by a factor of 13. The mechanism behind the enhanced UC red luminescence is deduced to originate from the Yb3+-Fe3+ dimer, as determined by first principle calculation and analysis of UC luminescence properties. The thermometry performance, based on splitting peaks of red emission, demonstrated enhanced temperature sensitivity at lower ranges. Exploring the photothermal properties, it was observed that temperature exhibited a linear correlation with pump power under a 980 nm laser, achieving levels up to 48 °C. This temperature range is ideal for applications in mild photothermal therapy (MPTT). This work elucidates the material’s potential in advanced biological applications, merging optical thermometry and photothermics, indicating its multifunctional utility.
期刊介绍：
Rare Metals is a monthly peer-reviewed journal published by the Nonferrous Metals Society of China. It serves as a platform for engineers and scientists to communicate and disseminate original research articles in the field of rare metals. The journal focuses on a wide range of topics including metallurgy, processing, and determination of rare metals. Additionally, it showcases the application of rare metals in advanced materials such as superconductors, semiconductors, composites, and ceramics.
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