Effect of Sn on the structural, morphological and optical properties of liCoPO4

IF 3.8 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Optical Materials Pub Date : 2025-03-28 DOI:10.1016/j.optmat.2025.116977

Mohamed S.I. Koubisy , Wael Mohammed , Fatemah H. Alkallas , Amira Ben Gouider Trabelsi , Shoroog Alraddadi , Abdelaziz M. Aboraia

{"title":"Effect of Sn on the structural, morphological and optical properties of liCoPO4","authors":"Mohamed S.I. Koubisy , Wael Mohammed , Fatemah H. Alkallas , Amira Ben Gouider Trabelsi , Shoroog Alraddadi , Abdelaziz M. Aboraia","doi":"10.1016/j.optmat.2025.116977","DOIUrl":null,"url":null,"abstract":"<div><div>In the presented work, the influence of Sn doping on structural, morphological, and optical properties is systematically investigated. In this regard, in order to overcome such drawbacks, Sn was incorporated into the LiCoPO<sub>4</sub> matrix through a solid-state synthesis route by varying the Sn concentration from 0 to 8 mol%. XRD recorded the structural changes upon Sn doping, which indicated that Sn incorporation did not change the LiCoPO<sub>4</sub> primary orthorhombic olivine structure, though inducing minor changes in the lattice parameters due to the radius difference between Sn<sup>4+</sup> and Co<sup>2+</sup>. TEM studies were performed to investigate the morphological properties. The optical properties were studied by UV–Vis spectrophotometer and showed a gradual decrease of the optical bandgap with increasing Sn content, the highest bandgap (3.94 eV) was obtained for x = 0 of Sn while the lowest value of band gap (3.64) was obtained for x = 0.08 of Sn. The refractive index decreased with an increase in the concentrations of Sn, 1.8 to 1.6 respectively. The non-linear absorption coefficient increases with Sn doping. Thus, these findings provide a new route to modify the properties of LiCoPO<sub>4</sub> for energy storage and also manifest Sn as a potential dopant for enhancing the performances of transition metal phosphates, particularly in various technological uses. This study therefore paves the way for further optimization of LiCoPO<sub>4</sub> and similar materials for high-performance batteries and other functional devices.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"163 ","pages":"Article 116977"},"PeriodicalIF":3.8000,"publicationDate":"2025-03-28","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/S0925346725003374","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

In the presented work, the influence of Sn doping on structural, morphological, and optical properties is systematically investigated. In this regard, in order to overcome such drawbacks, Sn was incorporated into the LiCoPO₄ matrix through a solid-state synthesis route by varying the Sn concentration from 0 to 8 mol%. XRD recorded the structural changes upon Sn doping, which indicated that Sn incorporation did not change the LiCoPO₄ primary orthorhombic olivine structure, though inducing minor changes in the lattice parameters due to the radius difference between Sn⁴⁺ and Co²⁺. TEM studies were performed to investigate the morphological properties. The optical properties were studied by UV–Vis spectrophotometer and showed a gradual decrease of the optical bandgap with increasing Sn content, the highest bandgap (3.94 eV) was obtained for x = 0 of Sn while the lowest value of band gap (3.64) was obtained for x = 0.08 of Sn. The refractive index decreased with an increase in the concentrations of Sn, 1.8 to 1.6 respectively. The non-linear absorption coefficient increases with Sn doping. Thus, these findings provide a new route to modify the properties of LiCoPO₄ for energy storage and also manifest Sn as a potential dopant for enhancing the performances of transition metal phosphates, particularly in various technological uses. This study therefore paves the way for further optimization of LiCoPO₄ and similar materials for high-performance batteries and other functional devices.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

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.