Dysprosium ion concentration variations and their comprehensive influence on the physical, structural and optical properties of multi-component borate glasses for luminescence tailoring

IF 5.1 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International Pub Date : 2024-10-10 DOI:10.1016/j.ceramint.2024.10.123

Amit Kumar , Anu , Ravina Lohan , Usha Rani , Isha Malik , Nisha Deopa , A.S. Rao , Anand Kumar

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引用次数: 0

Abstract

A set of Zinc Strontium Lithium Fluoroborate (ZSLFB) glasses with different concentrations of Dysprosium ions (Dy³⁺) was created using the melt quench technique. The presence of non-crystallinity and various functional groups have been confirmed via X-Ray Diffraction (XRD) and Infrared Fourier Transform FT-IR measurements, respectively. The band gap values obtained from Tauc plot were utilised to analyse the optical characteristics. The photoluminescence (PL) emission spectra display three well-defined intensity peaks at wavelengths of 481, 574, and 664 nm. The intensity of peaks exhibits an ascending trend until a concentration of 0.5 mol% of Dy³⁺ ions is reached, after which it decreases. The PL intensity maintains up to 82 % at 200° C to room temperature, showing excellent thermal stability. The Judd Ofelt (J-O) parameter values pursue the Ω₂ > Ω₆ > Ω₄ pattern, which shows its asymptotic nature. The CIE coordinates were assessed and determined to fall inside the white region. The interaction in the non-radiative energy transfer process was elucidated by utilizing the Dexter theory and Inokuti-Hiryama (I-H) model.

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镝离子浓度变化及其对用于发光裁剪的多组分硼酸盐玻璃的物理、结构和光学特性的综合影响

利用熔融淬火技术制造了一组含有不同浓度镝离子（Dy3+）的锌锶锂氟硼酸盐（ZSLFB）玻璃。通过 X 射线衍射 (XRD) 和红外傅立叶变换 FT-IR 测量分别证实了非结晶性和各种官能团的存在。从陶氏图谱中获得的带隙值被用来分析光学特性。光致发光（PL）发射光谱在波长 481、574 和 664 纳米处显示出三个清晰的强度峰。峰值强度呈上升趋势，直到 Dy3+ 离子浓度达到 0.5 摩尔%，然后下降。在 200 摄氏度至室温的条件下，PL 强度可保持高达 82%，显示出极佳的热稳定性。Judd Ofelt（J-O）参数值追求Ω2 > Ω6 > Ω4模式，这显示了其渐近性质。对 CIE 坐标进行了评估，确定其位于白色区域内。利用 Dexter 理论和 Inokuti-Hiryama (I-H) 模型阐明了非辐射能量转移过程中的相互作用。

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来源期刊

Ceramics International 工程技术-材料科学：硅酸盐

CiteScore

9.40

自引率

15.40%

发文量

4558

审稿时长

25 days

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.