{"title":"基于电荷转移带边红移的 SrY2O4:Sm3+/Eu3+ 荧光粉能量转移和新型 SBR 温度测量法","authors":"","doi":"10.1016/j.ceramint.2024.07.072","DOIUrl":null,"url":null,"abstract":"<div><p>In this study, a solid-state reaction was employed to synthesize SrY<sub>2</sub>O<sub>4</sub>: Sm<sup>3+</sup>, SrY<sub>2</sub>O<sub>4</sub>: Eu<sup>3+</sup> and SrY<sub>2</sub>O<sub>4</sub>: Sm<sup>3+</sup>/Eu<sup>3+</sup><span> phosphors. An intriguing redshift phenomenon from charge transfer band (CTB) edge was investigated for single-band ratiometric (SBR) thermometry applications. The phosphors synthesized exhibited an orthogonal CaFe</span><sub>2</sub>O<sub>4</sub> structure with <em>Pnam</em> (62) space group. The Y<sup>3+</sup><span> sites from host lattice were most likely to be replaced by Sm</span><sup>3+</sup>/Eu<sup>3+</sup> ions. The sample of SrY<sub>2</sub>O<sub>4</sub>: 0.03 Sm<sup>3+</sup>/0.3Eu<sup>3+</sup><span> showed a large degree of agglomeration with elongated particles<span><span>, having an average size of approximately 4 μm. The energy bandgap decreased due to increased surface imperfections, resulting in enhanced </span>defect level concentration. The dipole-dipole interaction could be used to explain energy transfer (ET) of Sm</span></span><sup>3+</sup>-Sm<sup>3+</sup> and Sm<sup>3+</sup>-Eu<sup>3+</sup>. Furthermore, the energy transfer (ET) efficiency of Sm<sup>3+</sup>→Eu<sup>3+</sup> in Sr<sub>2</sub>YO<sub>4</sub><span> reached 77.7 %. The sample exhibited a good thermal stability (90.956 %@423 K) with </span><em>E</em><sub>a</sub> of 0.31 eV, which was an important parameter for broadening thermometry range. A thermometry strategy utilized this redshift phenomenon from CTB edge with anti-thermal quenching behavior and other peaks or bands with thermal quenching was therefore proposed. The high S<sub>r</sub> value of 1.533 % K<sup>−1</sup>@298 K provides a great potential for optical thermometry application, contributing significantly to the advancement of single band ratiometric thermometry technologies.</p></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":null,"pages":null},"PeriodicalIF":5.1000,"publicationDate":"2024-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Energy transfer and a novel SBR thermometry of SrY2O4:Sm3+/Eu3+ phosphor based on redshift of charge transfer band edge\",\"authors\":\"\",\"doi\":\"10.1016/j.ceramint.2024.07.072\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>In this study, a solid-state reaction was employed to synthesize SrY<sub>2</sub>O<sub>4</sub>: Sm<sup>3+</sup>, SrY<sub>2</sub>O<sub>4</sub>: Eu<sup>3+</sup> and SrY<sub>2</sub>O<sub>4</sub>: Sm<sup>3+</sup>/Eu<sup>3+</sup><span> phosphors. An intriguing redshift phenomenon from charge transfer band (CTB) edge was investigated for single-band ratiometric (SBR) thermometry applications. The phosphors synthesized exhibited an orthogonal CaFe</span><sub>2</sub>O<sub>4</sub> structure with <em>Pnam</em> (62) space group. The Y<sup>3+</sup><span> sites from host lattice were most likely to be replaced by Sm</span><sup>3+</sup>/Eu<sup>3+</sup> ions. The sample of SrY<sub>2</sub>O<sub>4</sub>: 0.03 Sm<sup>3+</sup>/0.3Eu<sup>3+</sup><span> showed a large degree of agglomeration with elongated particles<span><span>, having an average size of approximately 4 μm. The energy bandgap decreased due to increased surface imperfections, resulting in enhanced </span>defect level concentration. The dipole-dipole interaction could be used to explain energy transfer (ET) of Sm</span></span><sup>3+</sup>-Sm<sup>3+</sup> and Sm<sup>3+</sup>-Eu<sup>3+</sup>. Furthermore, the energy transfer (ET) efficiency of Sm<sup>3+</sup>→Eu<sup>3+</sup> in Sr<sub>2</sub>YO<sub>4</sub><span> reached 77.7 %. The sample exhibited a good thermal stability (90.956 %@423 K) with </span><em>E</em><sub>a</sub> of 0.31 eV, which was an important parameter for broadening thermometry range. A thermometry strategy utilized this redshift phenomenon from CTB edge with anti-thermal quenching behavior and other peaks or bands with thermal quenching was therefore proposed. The high S<sub>r</sub> value of 1.533 % K<sup>−1</sup>@298 K provides a great potential for optical thermometry application, contributing significantly to the advancement of single band ratiometric thermometry technologies.</p></div>\",\"PeriodicalId\":267,\"journal\":{\"name\":\"Ceramics International\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":5.1000,\"publicationDate\":\"2024-07-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Ceramics International\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0272884224029523\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, CERAMICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ceramics International","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0272884224029523","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
Energy transfer and a novel SBR thermometry of SrY2O4:Sm3+/Eu3+ phosphor based on redshift of charge transfer band edge
In this study, a solid-state reaction was employed to synthesize SrY2O4: Sm3+, SrY2O4: Eu3+ and SrY2O4: Sm3+/Eu3+ phosphors. An intriguing redshift phenomenon from charge transfer band (CTB) edge was investigated for single-band ratiometric (SBR) thermometry applications. The phosphors synthesized exhibited an orthogonal CaFe2O4 structure with Pnam (62) space group. The Y3+ sites from host lattice were most likely to be replaced by Sm3+/Eu3+ ions. The sample of SrY2O4: 0.03 Sm3+/0.3Eu3+ showed a large degree of agglomeration with elongated particles, having an average size of approximately 4 μm. The energy bandgap decreased due to increased surface imperfections, resulting in enhanced defect level concentration. The dipole-dipole interaction could be used to explain energy transfer (ET) of Sm3+-Sm3+ and Sm3+-Eu3+. Furthermore, the energy transfer (ET) efficiency of Sm3+→Eu3+ in Sr2YO4 reached 77.7 %. The sample exhibited a good thermal stability (90.956 %@423 K) with Ea of 0.31 eV, which was an important parameter for broadening thermometry range. A thermometry strategy utilized this redshift phenomenon from CTB edge with anti-thermal quenching behavior and other peaks or bands with thermal quenching was therefore proposed. The high Sr value of 1.533 % K−1@298 K provides a great potential for optical thermometry application, contributing significantly to the advancement of single band ratiometric thermometry technologies.
期刊介绍:
Ceramics International covers the science of advanced ceramic materials. The journal encourages contributions that demonstrate how an understanding of the basic chemical and physical phenomena may direct materials design and stimulate ideas for new or improved processing techniques, in order to obtain materials with desired structural features and properties.
Ceramics International covers oxide and non-oxide ceramics, functional glasses, glass ceramics, amorphous inorganic non-metallic materials (and their combinations with metal and organic materials), in the form of particulates, dense or porous bodies, thin/thick films and laminated, graded and composite structures. Process related topics such as ceramic-ceramic joints or joining ceramics with dissimilar materials, as well as surface finishing and conditioning are also covered. Besides traditional processing techniques, manufacturing routes of interest include innovative procedures benefiting from externally applied stresses, electromagnetic fields and energetic beams, as well as top-down and self-assembly nanotechnology approaches. In addition, the journal welcomes submissions on bio-inspired and bio-enabled materials designs, experimentally validated multi scale modelling and simulation for materials design, and the use of the most advanced chemical and physical characterization techniques of structure, properties and behaviour.
Technologically relevant low-dimensional systems are a particular focus of Ceramics International. These include 0, 1 and 2-D nanomaterials (also covering CNTs, graphene and related materials, and diamond-like carbons), their nanocomposites, as well as nano-hybrids and hierarchical multifunctional nanostructures that might integrate molecular, biological and electronic components.