金属离子配比对LiGa5O8:Cr3+发光性能的影响

IF 0.9 4区 材料科学 Q3 MATERIALS SCIENCE, CERAMICS
Shiran Wu, Yue Wang, Mengya Wu, Weiyan Lei, Yi Shen
{"title":"金属离子配比对LiGa5O8:Cr3+发光性能的影响","authors":"Shiran Wu,&nbsp;Yue Wang,&nbsp;Mengya Wu,&nbsp;Weiyan Lei,&nbsp;Yi Shen","doi":"10.1007/s11106-023-00351-y","DOIUrl":null,"url":null,"abstract":"<div><div><p>Near-infrared long afterglow materials have the characteristics of non-obscuring bio autofluorescence and good photo/chemical stability. They can play an essential role in bioimaging, whereas LiGa<sub>5</sub>O<sub>8</sub>:Cr<sup>3+</sup> has long afterglow and optical photoexcitation properties. In this paper, LiGa<sub>5</sub>O<sub>8</sub>:Cr<sup>3+</sup> nanophosphors were successfully synthesized by hydrothermal method. X-ray diffraction (XRD) patterns were recorded using an X-ray diffractometer. Luminescence spectra and decay curves were obtained via a fluorescence spectrophotometer. The microstructural properties of the samples were analyzed using scanning electron microscopy (SEM). Transmission electron microscopy (TEM) images were recorded on a TEM instrument. Thermoluminescence spectrometer was employed to obtain a thermoluminescence curve. Using Tween 20 as the experimental chelating agent, it was found that the ratio of total metal ions to Tween 20 significantly affected the luminescence properties of LiGa<sub>5</sub>O<sub>8</sub>:Cr<sup>3+</sup>. When the ratio of total metal ions to Tween 20 was 7 : 1, the sample had less impurity phase, high crystallinity, regular grain shape, and a size of about 100 nm. The fluorescence spectra showed that the main excitation peaks were 410 nm and 608 nm, and the main emission peaks were 720 nm. The sample with a ratio of 7 : 1 had a higher relative intensity than all other samples, with more effective traps and greater stored energy to produce more luminescent carriers. The kinetic order at this point was 2. It provides a solid basis for bioimaging.</p></div></div>","PeriodicalId":742,"journal":{"name":"Powder Metallurgy and Metal Ceramics","volume":"61 9-10","pages":"625 - 631"},"PeriodicalIF":0.9000,"publicationDate":"2023-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Effect of Metal Ions Ratio on Luminescence Properties of LiGa5O8:Cr3+\",\"authors\":\"Shiran Wu,&nbsp;Yue Wang,&nbsp;Mengya Wu,&nbsp;Weiyan Lei,&nbsp;Yi Shen\",\"doi\":\"10.1007/s11106-023-00351-y\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div><p>Near-infrared long afterglow materials have the characteristics of non-obscuring bio autofluorescence and good photo/chemical stability. They can play an essential role in bioimaging, whereas LiGa<sub>5</sub>O<sub>8</sub>:Cr<sup>3+</sup> has long afterglow and optical photoexcitation properties. In this paper, LiGa<sub>5</sub>O<sub>8</sub>:Cr<sup>3+</sup> nanophosphors were successfully synthesized by hydrothermal method. X-ray diffraction (XRD) patterns were recorded using an X-ray diffractometer. Luminescence spectra and decay curves were obtained via a fluorescence spectrophotometer. The microstructural properties of the samples were analyzed using scanning electron microscopy (SEM). Transmission electron microscopy (TEM) images were recorded on a TEM instrument. Thermoluminescence spectrometer was employed to obtain a thermoluminescence curve. Using Tween 20 as the experimental chelating agent, it was found that the ratio of total metal ions to Tween 20 significantly affected the luminescence properties of LiGa<sub>5</sub>O<sub>8</sub>:Cr<sup>3+</sup>. When the ratio of total metal ions to Tween 20 was 7 : 1, the sample had less impurity phase, high crystallinity, regular grain shape, and a size of about 100 nm. The fluorescence spectra showed that the main excitation peaks were 410 nm and 608 nm, and the main emission peaks were 720 nm. The sample with a ratio of 7 : 1 had a higher relative intensity than all other samples, with more effective traps and greater stored energy to produce more luminescent carriers. The kinetic order at this point was 2. It provides a solid basis for bioimaging.</p></div></div>\",\"PeriodicalId\":742,\"journal\":{\"name\":\"Powder Metallurgy and Metal Ceramics\",\"volume\":\"61 9-10\",\"pages\":\"625 - 631\"},\"PeriodicalIF\":0.9000,\"publicationDate\":\"2023-06-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Powder Metallurgy and Metal Ceramics\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11106-023-00351-y\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, CERAMICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Powder Metallurgy and Metal Ceramics","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s11106-023-00351-y","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
引用次数: 1

摘要

近红外长余辉材料具有不遮挡生物自荧光和光化学稳定性好的特点。它们可以在生物成像中发挥重要作用,而LiGa5O8:Cr3+具有长余辉和光学光激发特性。本文采用水热法制备了LiGa5O8:Cr3+纳米荧光粉。用x射线衍射仪记录了x射线衍射(XRD)图。通过荧光分光光度计获得了发光光谱和衰减曲线。利用扫描电子显微镜(SEM)分析了样品的显微组织性能。透射电镜(TEM)图像记录在TEM仪器上。采用热释光光谱仪获得热释光曲线。使用Tween 20作为实验螯合剂,发现总金属离子与Tween 20的比例显著影响LiGa5O8:Cr3+的发光性能。当总金属离子与Tween 20的比例为7:1时,样品杂质相较少,结晶度高,晶粒形状规则,尺寸约为100 nm。荧光光谱显示,主要激发峰为410 nm和608 nm,主要发射峰为720 nm。与其他样品相比,比例为7:1的样品具有更高的相对强度,具有更有效的陷阱和更大的存储能量,从而产生更多的发光载流子。这一点的动力学阶数是2。它为生物成像提供了坚实的基础。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Effect of Metal Ions Ratio on Luminescence Properties of LiGa5O8:Cr3+

Effect of Metal Ions Ratio on Luminescence Properties of LiGa5O8:Cr3+

Near-infrared long afterglow materials have the characteristics of non-obscuring bio autofluorescence and good photo/chemical stability. They can play an essential role in bioimaging, whereas LiGa5O8:Cr3+ has long afterglow and optical photoexcitation properties. In this paper, LiGa5O8:Cr3+ nanophosphors were successfully synthesized by hydrothermal method. X-ray diffraction (XRD) patterns were recorded using an X-ray diffractometer. Luminescence spectra and decay curves were obtained via a fluorescence spectrophotometer. The microstructural properties of the samples were analyzed using scanning electron microscopy (SEM). Transmission electron microscopy (TEM) images were recorded on a TEM instrument. Thermoluminescence spectrometer was employed to obtain a thermoluminescence curve. Using Tween 20 as the experimental chelating agent, it was found that the ratio of total metal ions to Tween 20 significantly affected the luminescence properties of LiGa5O8:Cr3+. When the ratio of total metal ions to Tween 20 was 7 : 1, the sample had less impurity phase, high crystallinity, regular grain shape, and a size of about 100 nm. The fluorescence spectra showed that the main excitation peaks were 410 nm and 608 nm, and the main emission peaks were 720 nm. The sample with a ratio of 7 : 1 had a higher relative intensity than all other samples, with more effective traps and greater stored energy to produce more luminescent carriers. The kinetic order at this point was 2. It provides a solid basis for bioimaging.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Powder Metallurgy and Metal Ceramics
Powder Metallurgy and Metal Ceramics 工程技术-材料科学:硅酸盐
CiteScore
1.90
自引率
20.00%
发文量
43
审稿时长
6-12 weeks
期刊介绍: Powder Metallurgy and Metal Ceramics covers topics of the theory, manufacturing technology, and properties of powder; technology of forming processes; the technology of sintering, heat treatment, and thermo-chemical treatment; properties of sintered materials; and testing methods.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信