{"title":"Cr3+和Bi3+共掺双钙钛矿荧光粉的宽带近红外发射特性","authors":"Renping Cao, Xianjun Huang, Xiaochun Li, Fangrui Cheng, Jingheng Nie, Ruirui Yang, Sijie Liu, Ting Chen","doi":"10.1016/j.jlumin.2025.121492","DOIUrl":null,"url":null,"abstract":"<div><div>High-performance broadband near-infrared (NIR) emitting phosphors are receiving extensive attention because NIR light sources are used in many fields, such as biomedical imaging, food detection, night vision systems, plant growth, security surveillance, and non-invasive health monitoring. Herein, Li<sub>1.6</sub>Zn<sub>1.6</sub>Sn<sub>2.8</sub>O<sub>8</sub>:Cr<sup>3+</sup> and Li<sub>1.6</sub>Zn<sub>1.6</sub>Sn<sub>2.8</sub>O<sub>8</sub>:Cr<sup>3+</sup>, Bi<sup>3+</sup> phosphors with irregular size and smooth surface are prepared in air. Li<sub>1.6</sub>Zn<sub>1.6</sub>Sn<sub>2.8</sub>O<sub>8</sub>:Cr<sup>3+</sup> and Li<sub>1.6</sub>Zn<sub>1.6</sub>Sn<sub>2.8</sub>O<sub>8</sub>:Cr<sup>3+</sup>, Bi<sup>3+</sup> all show NIR emission peaking at ∼830 nm in the region from 650 to 1350 nm with ∼200 nm full width at half maximum (FWHM) owing to the <sup>4</sup>T<sub>2</sub>(<sup>4</sup>F) → <sup>4</sup>A<sub>2</sub> transition of Cr<sup>3+</sup>. The co-doped Bi<sup>3+</sup> can improve the luminescence intensity of Li<sub>1.6</sub>Zn<sub>1.6</sub>Sn<sub>2.8</sub>O<sub>8</sub>:Cr<sup>3+</sup>, which achieves ∼2.15 times. The temperature-dependent emission spectra confirm the good thermal stability of Li<sub>1.6</sub>Zn<sub>1.6</sub>Sn<sub>2.8</sub>O<sub>8</sub>:Cr<sup>3+</sup> and Li<sub>1.6</sub>Zn<sub>1.6</sub>Sn<sub>2.8</sub>O<sub>8</sub>:Cr<sup>3+</sup>, Bi<sup>3+</sup>. The luminescence property improvement of Cr<sup>3+</sup> doped luminescence materials can be referred to this paper content.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"287 ","pages":"Article 121492"},"PeriodicalIF":3.6000,"publicationDate":"2025-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Broadband near-infrared emission properties of Cr3+ and Bi3+ co-doped double perovskite phosphor\",\"authors\":\"Renping Cao, Xianjun Huang, Xiaochun Li, Fangrui Cheng, Jingheng Nie, Ruirui Yang, Sijie Liu, Ting Chen\",\"doi\":\"10.1016/j.jlumin.2025.121492\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>High-performance broadband near-infrared (NIR) emitting phosphors are receiving extensive attention because NIR light sources are used in many fields, such as biomedical imaging, food detection, night vision systems, plant growth, security surveillance, and non-invasive health monitoring. Herein, Li<sub>1.6</sub>Zn<sub>1.6</sub>Sn<sub>2.8</sub>O<sub>8</sub>:Cr<sup>3+</sup> and Li<sub>1.6</sub>Zn<sub>1.6</sub>Sn<sub>2.8</sub>O<sub>8</sub>:Cr<sup>3+</sup>, Bi<sup>3+</sup> phosphors with irregular size and smooth surface are prepared in air. Li<sub>1.6</sub>Zn<sub>1.6</sub>Sn<sub>2.8</sub>O<sub>8</sub>:Cr<sup>3+</sup> and Li<sub>1.6</sub>Zn<sub>1.6</sub>Sn<sub>2.8</sub>O<sub>8</sub>:Cr<sup>3+</sup>, Bi<sup>3+</sup> all show NIR emission peaking at ∼830 nm in the region from 650 to 1350 nm with ∼200 nm full width at half maximum (FWHM) owing to the <sup>4</sup>T<sub>2</sub>(<sup>4</sup>F) → <sup>4</sup>A<sub>2</sub> transition of Cr<sup>3+</sup>. The co-doped Bi<sup>3+</sup> can improve the luminescence intensity of Li<sub>1.6</sub>Zn<sub>1.6</sub>Sn<sub>2.8</sub>O<sub>8</sub>:Cr<sup>3+</sup>, which achieves ∼2.15 times. The temperature-dependent emission spectra confirm the good thermal stability of Li<sub>1.6</sub>Zn<sub>1.6</sub>Sn<sub>2.8</sub>O<sub>8</sub>:Cr<sup>3+</sup> and Li<sub>1.6</sub>Zn<sub>1.6</sub>Sn<sub>2.8</sub>O<sub>8</sub>:Cr<sup>3+</sup>, Bi<sup>3+</sup>. The luminescence property improvement of Cr<sup>3+</sup> doped luminescence materials can be referred to this paper content.</div></div>\",\"PeriodicalId\":16159,\"journal\":{\"name\":\"Journal of Luminescence\",\"volume\":\"287 \",\"pages\":\"Article 121492\"},\"PeriodicalIF\":3.6000,\"publicationDate\":\"2025-08-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Luminescence\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0022231325004326\",\"RegionNum\":3,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"OPTICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Luminescence","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0022231325004326","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OPTICS","Score":null,"Total":0}
Broadband near-infrared emission properties of Cr3+ and Bi3+ co-doped double perovskite phosphor
High-performance broadband near-infrared (NIR) emitting phosphors are receiving extensive attention because NIR light sources are used in many fields, such as biomedical imaging, food detection, night vision systems, plant growth, security surveillance, and non-invasive health monitoring. Herein, Li1.6Zn1.6Sn2.8O8:Cr3+ and Li1.6Zn1.6Sn2.8O8:Cr3+, Bi3+ phosphors with irregular size and smooth surface are prepared in air. Li1.6Zn1.6Sn2.8O8:Cr3+ and Li1.6Zn1.6Sn2.8O8:Cr3+, Bi3+ all show NIR emission peaking at ∼830 nm in the region from 650 to 1350 nm with ∼200 nm full width at half maximum (FWHM) owing to the 4T2(4F) → 4A2 transition of Cr3+. The co-doped Bi3+ can improve the luminescence intensity of Li1.6Zn1.6Sn2.8O8:Cr3+, which achieves ∼2.15 times. The temperature-dependent emission spectra confirm the good thermal stability of Li1.6Zn1.6Sn2.8O8:Cr3+ and Li1.6Zn1.6Sn2.8O8:Cr3+, Bi3+. The luminescence property improvement of Cr3+ doped luminescence materials can be referred to this paper content.
期刊介绍:
The purpose of the Journal of Luminescence is to provide a means of communication between scientists in different disciplines who share a common interest in the electronic excited states of molecular, ionic and covalent systems, whether crystalline, amorphous, or liquid.
We invite original papers and reviews on such subjects as: exciton and polariton dynamics, dynamics of localized excited states, energy and charge transport in ordered and disordered systems, radiative and non-radiative recombination, relaxation processes, vibronic interactions in electronic excited states, photochemistry in condensed systems, excited state resonance, double resonance, spin dynamics, selective excitation spectroscopy, hole burning, coherent processes in excited states, (e.g. coherent optical transients, photon echoes, transient gratings), multiphoton processes, optical bistability, photochromism, and new techniques for the study of excited states. This list is not intended to be exhaustive. Papers in the traditional areas of optical spectroscopy (absorption, MCD, luminescence, Raman scattering) are welcome. Papers on applications (phosphors, scintillators, electro- and cathodo-luminescence, radiography, bioimaging, solar energy, energy conversion, etc.) are also welcome if they present results of scientific, rather than only technological interest. However, papers containing purely theoretical results, not related to phenomena in the excited states, as well as papers using luminescence spectroscopy to perform routine analytical chemistry or biochemistry procedures, are outside the scope of the journal. Some exceptions will be possible at the discretion of the editors.