Structural, optical, and dielectric investigations of sodium-modified lead-bismuth borate glasses

IF 4.2 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Optical Materials Pub Date : 2025-02-01 Epub Date: 2024-12-16 DOI:10.1016/j.optmat.2024.116573

Divya Yadav , Rajni Bala , Sumit Chauhan , Sanjay Gaur , Deepesh Sharma , Saroj Rani

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Abstract

The current study involves the synthesis of xNa₂O·20PbO·(25-x)Bi₂O₃·55B₂O₃ glass system (with 5 ≤ x ≤ 25 mol%) by melt quench technique to analyze the influence of Na₂O on the structural, optical, and dielectric properties of glass samples. X-ray diffraction (XRD) confirmed the amorphous nature of the samples while scanning electron microscopy (SEM) verified glass formation through morphological analysis. FTIR and Raman spectra analysis suggests that B₂O₃ exists mainly as [BO₄] and [BO₃] structural units. PbO and Bi₂O₃ act as network-modifying [PbO₄] and [BiO₆] octahedral units accordingly. The indirect optical band gap increases with the gradual substitution of Bi₂O₃ by Na₂O content. The synthesized glasses exhibit high electronic oxide ion polarizability (3.253–2.867), optical basicity (1.156–1.087), and metallization criterion values (0.329–0.370), indicating their suitability for non-linear optical devices. The dielectric study revealed non-Debye type behavior in the synthesized glasses.

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钠改性硼酸铅铋玻璃的结构、光学和介电研究

本研究采用熔体淬火技术合成xNa2O·20PbO·（25-x）Bi2O3·55B2O3玻璃体系（5≤x≤25 mol%），分析Na2O对玻璃样品结构、光学和介电性能的影响。x射线衍射（XRD）证实了样品的无定形性质，扫描电子显微镜（SEM）通过形貌分析证实了玻璃的形成。FTIR和拉曼光谱分析表明，B2O3主要以[BO4]和[BO3]结构单元存在。PbO和Bi2O3分别作为网络修饰[PbO4]和[BiO6]八面体单元。间接光学带隙随着Bi2O3被Na2O含量逐渐取代而增大。合成的玻璃具有较高的电子氧化物离子极化率（3.253 ~ 2.867）、光学碱度（1.156 ~ 1.087）和金属化判据值（0.329 ~ 0.370），适合用于非线性光学器件。电介质研究揭示了合成玻璃的非德拜型行为。

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来源期刊

Optical Materials 工程技术-材料科学：综合

CiteScore

6.60

自引率

12.80%

发文量

1265

审稿时长

38 days

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.