Investigation of the Optical and Electrical Properties of Strontium Yttrium Oxide Nanocomposites Integrated with Poly (lactic acid) polymer films

Investigation of the Optical and Electrical Properties of Strontium Yttrium Oxide Nanocomposites Integrated with Poly (lactic acid) polymer films | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Investigation of the Optical and Electrical Properties of Strontium Yttrium Oxide Nanocomposites Integrated with Poly (lactic acid) polymer films S Shruthi, N Sandhya Rani This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6593745/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract In this study, we report the successful fabrication of poly (lactic acid)/strontium yttrium oxide (PLA/SrYO 3 ) nanocomposite polymer film by solution casting technique at various concentrations. The prepared films were examined to determine the influence of nanocomposite additives on the optical and electrical properties of PLA. The successful doping and uniform distribution of nanoparticles within the PLA polymer matrix are evaluated using x-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). The XRD analysis indicated that the crystalline properties of the nanocomposites enhance as the concentration of the dopant increases. Interaction between SrYO 3 and PLA was found using Fourier Transform Infrared Spectrophotometer (FTIR). Notable enhancements in intensity, along with a minor shift in peak positions, were observed in the nanocomposite-doped PLA. These observations were associated to the excellent solubility and effective dispersion of nanoparticles within the PLA polymer. The optical properties of nanocomposite films were evaluated, including absorption and extinction coefficients, optical band gap, complex refractive index (RI), dielectric functions, and optical conductivity. This assessment emphasizes the impact of dopants on the optical characteristics of PLA, indicating the possibility of alterations in the band gap. The dielectric properties, ac conductivity, and charge dissipation were found to increase with nanofiller content and decrease with frequency. Nanocomposite XRD optical thermal dielectric Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-6593745","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":469748302,"identity":"48fba2d0-b75b-4fe4-a382-d11e107ad058","order_by":0,"name":"S Shruthi","email":"","orcid":"","institution":"Mysuru Royal Institute of Technology","correspondingAuthor":false,"prefix":"","firstName":"S","middleName":"","lastName":"Shruthi","suffix":""},{"id":469748303,"identity":"e4d8a8a3-1318-4e95-b869-34680bcbe906","order_by":1,"name":"N Sandhya Rani","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA8ElEQVRIiWNgGAWjYJACaTApwcD4AC6UQKQWZgOStbBJEOUo+fazB28XttkxmEv3mFXzttnJMbAffsDwcAduLQZn8pKtZ7YlM1jOOWN2m7ct2ZiBJ82AIfEMHi0MOWbSvG3MDAY3csxuzjhzILGBIYeBIbENj8P634C01IO1FAK11Dfwv8GvheEG2JbDYC0MHyoOJDBIELDF4MYbY2uec8d5LGekFUt8qEg2bJN4ZnAAv8NyDG/zlFXLmUskb/yQYGAnz8+f/PDhT3wOAwFGNgYeAwYOSEyyAfEBAhqA4A8o6NgfEFY4CkbBKBgFIxIAANgSSYeMKCaDAAAAAElFTkSuQmCC","orcid":"","institution":"Vidyavardhaka College of Engineering","correspondingAuthor":true,"prefix":"","firstName":"N","middleName":"Sandhya","lastName":"Rani","suffix":""}],"badges":[],"createdAt":"2025-05-05 10:53:27","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-6593745/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-6593745/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":85863604,"identity":"c93dfc44-4d20-4667-bc30-e3521379c775","added_by":"auto","created_at":"2025-07-02 12:38:56","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":959043,"visible":true,"origin":"","legend":"","description":"","filename":"SrYO3Manuscript.pdf","url":"https://assets-eu.researchsquare.com/files/rs-6593745/v1_covered_153eab7a-1db6-4cc7-9040-e44a2c1cfc00.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Investigation of the Optical and Electrical Properties of Strontium Yttrium Oxide Nanocomposites Integrated with Poly (lactic acid) polymer films","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"Nanocomposite, XRD, optical, thermal, dielectric","lastPublishedDoi":"10.21203/rs.3.rs-6593745/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-6593745/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eIn this study, we report the successful fabrication of poly (lactic acid)/strontium yttrium oxide (PLA/SrYO\u003csub\u003e3\u003c/sub\u003e) nanocomposite polymer film by solution casting technique at various concentrations. 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The optical properties of nanocomposite films were evaluated, including absorption and extinction coefficients, optical band gap, complex refractive index (RI), dielectric functions, and optical conductivity. This assessment emphasizes the impact of dopants on the optical characteristics of PLA, indicating the possibility of alterations in the band gap. 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