{"title":"Structural, optical, and dielectric investigations of sodium-modified lead-bismuth borate glasses","authors":"Divya Yadav , Rajni Bala , Sumit Chauhan , Sanjay Gaur , Deepesh Sharma , Saroj Rani","doi":"10.1016/j.optmat.2024.116573","DOIUrl":null,"url":null,"abstract":"<div><div>The current study involves the synthesis of xNa<sub>2</sub>O·20PbO·(25-x)Bi<sub>2</sub>O<sub>3</sub>·55B<sub>2</sub>O<sub>3</sub> glass system (with 5 ≤ x ≤ 25 mol%) by melt quench technique to analyze the influence of Na<sub>2</sub>O 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 B<sub>2</sub>O<sub>3</sub> exists mainly as [BO<sub>4</sub>] and [BO<sub>3</sub>] structural units. PbO and Bi<sub>2</sub>O<sub>3</sub> act as network-modifying [PbO<sub>4</sub>] and [BiO<sub>6</sub>] octahedral units accordingly. The indirect optical band gap increases with the gradual substitution of Bi<sub>2</sub>O<sub>3</sub> by Na<sub>2</sub>O 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.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"159 ","pages":"Article 116573"},"PeriodicalIF":3.8000,"publicationDate":"2025-02-01","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/S0925346724017567","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}
引用次数: 0
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.
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.
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