{"title":"The network former/modifier behavior of CuO in Na2O-P2O5 glasses","authors":"Aamir Bashir , Paramjyot Kumar Jha , Navneet Kaur Mattu , Santosh Kumar , K. Singh","doi":"10.1016/j.ceramint.2024.09.421","DOIUrl":null,"url":null,"abstract":"<div><div>This present study focus on the synthesis, characterization, and evaluation of the role of CuO in the physical, structural, and optical properties of 50P<sub>2</sub>O<sub>5</sub>-(55-x)Na<sub>2</sub>O-xCuO (x = 0, 1, 3, and 5 mol%) compositions. The synthesized samples are analysed using various techniques such as XRD, FTIR, Raman, and UV–Visible spectroscopy to check their potential for laser and nonlinear optical applications. The addition of CuO in place of Na<sub>2</sub>O, increases the density of the glasses, while the molar volume decreases except for the PNC-5 (5 mol%) samples. X-ray diffraction confirms the amorphous nature of the samples. FTIR and Raman spectra reveal the presence of metaphosphate (Q<sup>2</sup>) and pyrophosphate (Q<sup>1</sup>) structural units, indicating that the glass network becomes more polymerized as CuO is added up to 3 mol%. The optical band gap increases from 3.52 to 4.27 eV, while the refractive index decreases from 2.54 to 2.12 as the concentration of CuO increases up to 3 mol%. These observations, shows the dual behaviour of CuO i.e., network former (up to 3 mol%) and network modifier (above 3 mol%). These findings also suggest that the present glass material holds significant promises for applications in nonlinear optics.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"50 23","pages":"Pages 50766-50773"},"PeriodicalIF":5.1000,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ceramics International","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0272884224044572","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
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Abstract
This present study focus on the synthesis, characterization, and evaluation of the role of CuO in the physical, structural, and optical properties of 50P2O5-(55-x)Na2O-xCuO (x = 0, 1, 3, and 5 mol%) compositions. The synthesized samples are analysed using various techniques such as XRD, FTIR, Raman, and UV–Visible spectroscopy to check their potential for laser and nonlinear optical applications. The addition of CuO in place of Na2O, increases the density of the glasses, while the molar volume decreases except for the PNC-5 (5 mol%) samples. X-ray diffraction confirms the amorphous nature of the samples. FTIR and Raman spectra reveal the presence of metaphosphate (Q2) and pyrophosphate (Q1) structural units, indicating that the glass network becomes more polymerized as CuO is added up to 3 mol%. The optical band gap increases from 3.52 to 4.27 eV, while the refractive index decreases from 2.54 to 2.12 as the concentration of CuO increases up to 3 mol%. These observations, shows the dual behaviour of CuO i.e., network former (up to 3 mol%) and network modifier (above 3 mol%). These findings also suggest that the present glass material holds significant promises for applications in nonlinear optics.
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.
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