{"title":"用于橙红 LED 的掺杂 Sm3+ 离子硅酸镓玻璃的光谱特性分析","authors":"","doi":"10.1016/j.optmat.2024.116085","DOIUrl":null,"url":null,"abstract":"<div><p>In this work, a variety of Sm<sup>3+</sup> ions doped gallium silicate glasses have been made using the conventional melt quenching procedure, and characterized by X-ray diffraction, absorption spectrum, fluorescence spectrum, fluorescence decay curves, respectively. The density of the glass increases with the increase of the concentration of Sm<sup>3+</sup> ions, and XRD shows that the samples are all amorphous glasses. Absorption spectra were used to determine the J-O intensity parameters (Ω<sub>λ</sub>, λ = 2, 4, 6), as well as the radiation transition probability(A), fluorescence branching ratio(β<sub>r</sub>), and radiation lifetime(τ<sub>r</sub>) of Sm<sup>3+</sup> ions at the <sup>4</sup>G<sub>5/2</sub> energy level. Under 403 nm excitation, the emission spectra show obvious emission peaks at 602 nm and 649 nm, corresponding to <sup>4</sup>G<sub>5/2</sub> → <sup>6</sup>H<sub>7/2</sub> and <sup>4</sup>G<sub>5/2</sub> → <sup>6</sup>H<sub>9/2</sub> transitions respectively. The B3 glass sample has the largest emission cross section(σ<sub>em</sub>) at the <sup>4</sup>G<sub>5/2</sub> → <sup>6</sup>H<sub>7/2</sub> transition, with σ<sub>em</sub> = 11.40 × 10<sup>−22</sup> cm<sup>2</sup>. The color coordinates, color purity and color temperature values of all samples were calculated. The color purity of all samples varied in the range of 96.20%–99.14 %, with the relevant samples separating in the orange-red light region. The experimental results indicate that the glass samples have a potential application prospect in the field of orange-red LEDs.</p></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":null,"pages":null},"PeriodicalIF":3.8000,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Analysis of spectroscopic characteristics of Sm3+ ions doped gallium silicate glasses for orange-red LEDs\",\"authors\":\"\",\"doi\":\"10.1016/j.optmat.2024.116085\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>In this work, a variety of Sm<sup>3+</sup> ions doped gallium silicate glasses have been made using the conventional melt quenching procedure, and characterized by X-ray diffraction, absorption spectrum, fluorescence spectrum, fluorescence decay curves, respectively. The density of the glass increases with the increase of the concentration of Sm<sup>3+</sup> ions, and XRD shows that the samples are all amorphous glasses. Absorption spectra were used to determine the J-O intensity parameters (Ω<sub>λ</sub>, λ = 2, 4, 6), as well as the radiation transition probability(A), fluorescence branching ratio(β<sub>r</sub>), and radiation lifetime(τ<sub>r</sub>) of Sm<sup>3+</sup> ions at the <sup>4</sup>G<sub>5/2</sub> energy level. Under 403 nm excitation, the emission spectra show obvious emission peaks at 602 nm and 649 nm, corresponding to <sup>4</sup>G<sub>5/2</sub> → <sup>6</sup>H<sub>7/2</sub> and <sup>4</sup>G<sub>5/2</sub> → <sup>6</sup>H<sub>9/2</sub> transitions respectively. The B3 glass sample has the largest emission cross section(σ<sub>em</sub>) at the <sup>4</sup>G<sub>5/2</sub> → <sup>6</sup>H<sub>7/2</sub> transition, with σ<sub>em</sub> = 11.40 × 10<sup>−22</sup> cm<sup>2</sup>. The color coordinates, color purity and color temperature values of all samples were calculated. The color purity of all samples varied in the range of 96.20%–99.14 %, with the relevant samples separating in the orange-red light region. The experimental results indicate that the glass samples have a potential application prospect in the field of orange-red LEDs.</p></div>\",\"PeriodicalId\":19564,\"journal\":{\"name\":\"Optical Materials\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.8000,\"publicationDate\":\"2024-09-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Optical Materials\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0925346724012680\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optical Materials","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0925346724012680","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Analysis of spectroscopic characteristics of Sm3+ ions doped gallium silicate glasses for orange-red LEDs
In this work, a variety of Sm3+ ions doped gallium silicate glasses have been made using the conventional melt quenching procedure, and characterized by X-ray diffraction, absorption spectrum, fluorescence spectrum, fluorescence decay curves, respectively. The density of the glass increases with the increase of the concentration of Sm3+ ions, and XRD shows that the samples are all amorphous glasses. Absorption spectra were used to determine the J-O intensity parameters (Ωλ, λ = 2, 4, 6), as well as the radiation transition probability(A), fluorescence branching ratio(βr), and radiation lifetime(τr) of Sm3+ ions at the 4G5/2 energy level. Under 403 nm excitation, the emission spectra show obvious emission peaks at 602 nm and 649 nm, corresponding to 4G5/2 → 6H7/2 and 4G5/2 → 6H9/2 transitions respectively. The B3 glass sample has the largest emission cross section(σem) at the 4G5/2 → 6H7/2 transition, with σem = 11.40 × 10−22 cm2. The color coordinates, color purity and color temperature values of all samples were calculated. The color purity of all samples varied in the range of 96.20%–99.14 %, with the relevant samples separating in the orange-red light region. The experimental results indicate that the glass samples have a potential application prospect in the field of orange-red LEDs.
期刊介绍:
Optical Materials has an open access mirror journal Optical Materials: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review.
The purpose of Optical Materials is to provide a means of communication and technology transfer between researchers who are interested in materials for potential device applications. The journal publishes original papers and review articles on the design, synthesis, characterisation and applications of optical materials.
OPTICAL MATERIALS focuses on:
• Optical Properties of Material Systems;
• The Materials Aspects of Optical Phenomena;
• The Materials Aspects of Devices and Applications.
Authors can submit separate research elements describing their data to Data in Brief and methods to Methods X.