Divakar Singh, Surbhi Agarwal, D. K. Dwivedi, Pooja Lohia, Rajnish Raj, Pravin Kumar Singh
{"title":"Optical and Glass Stability Parameters of Ge–Te–Se–Sb Chalcogenide Glasses for Optical Data Storage","authors":"Divakar Singh, Surbhi Agarwal, D. K. Dwivedi, Pooja Lohia, Rajnish Raj, Pravin Kumar Singh","doi":"10.1134/s0036023623603501","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The present work describes the glass stability parameters of quaternary GeTe<sub>2 – <i>x</i></sub>(SeSb)<sub><i>x</i></sub> (<i>x</i> = 0, 0.2, 0.4, 0.6) chalcogenide glasses. The thin-film samples of thickness ~500 nm was deposited by thermal evaporation technique. DSC analysis of GeTe<sub>2–<i>x</i></sub>(SeSb)<sub><i>x</i></sub> chalcogenide glasses for studying different glass stability criteria at various heating rate (β = 5, 10, 15 and 20°C/min) were carried out. Many optical parameters of GeTe<sub>2</sub> studied by UV-vis and glass stability parameters like H<sub>LL</sub>, H<sub>MM</sub>, H<sub>CS</sub>, etc. were determined. These criteria can be attained by the interrelationship between the characteristic temperatures. According to the onset and peak crystallization temperature, two groups of these criteria were investigated. The value of absorption coefficient is larger than 104 cm, therefore it is useful for optical data storage. The optical band gap energy is observed at 2.834 eV and material has direct allowed transition. The refractive index is observed to be increased with increase in wavelength. All investigated parameters revealed that studied composition is suitable for optical data storage applications.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"3 1","pages":""},"PeriodicalIF":1.8000,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Journal of Inorganic Chemistry","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1134/s0036023623603501","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
引用次数: 0
Abstract
The present work describes the glass stability parameters of quaternary GeTe2 – x(SeSb)x (x = 0, 0.2, 0.4, 0.6) chalcogenide glasses. The thin-film samples of thickness ~500 nm was deposited by thermal evaporation technique. DSC analysis of GeTe2–x(SeSb)x chalcogenide glasses for studying different glass stability criteria at various heating rate (β = 5, 10, 15 and 20°C/min) were carried out. Many optical parameters of GeTe2 studied by UV-vis and glass stability parameters like HLL, HMM, HCS, etc. were determined. These criteria can be attained by the interrelationship between the characteristic temperatures. According to the onset and peak crystallization temperature, two groups of these criteria were investigated. The value of absorption coefficient is larger than 104 cm, therefore it is useful for optical data storage. The optical band gap energy is observed at 2.834 eV and material has direct allowed transition. The refractive index is observed to be increased with increase in wavelength. All investigated parameters revealed that studied composition is suitable for optical data storage applications.
期刊介绍：
Russian Journal of Inorganic Chemistry is a monthly periodical that covers the following topics of research: the synthesis and properties of inorganic compounds, coordination compounds, physicochemical analysis of inorganic systems, theoretical inorganic chemistry, physical methods of investigation, chemistry of solutions, inorganic materials, and nanomaterials.
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