{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,25]],"date-time":"2026-08-25T15:57:57Z","timestamp":1787673477572,"version":"build-2736575974"},"reference-count":54,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2025,9,8]],"date-time":"2025-09-08T00:00:00Z","timestamp":1757289600000},"content-version":"vor","delay-in-days":7,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2025,9,1]],"date-time":"2025-09-01T00:00:00Z","timestamp":1756684800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["analyticalsciencejournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Luminescence"],"published-print":{"date-parts":[[2025,9]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    The iron nickel magnesium tetra\u2010oxide (FeNiMgO\n                    <jats:sub>4<\/jats:sub>\n                    ) nanocomposites (NCs) first reported in this article were synthesized using the sol\u2013gel method. For investigation using powder X\u2010ray diffraction (PXRD), the presence of a cubic structure is confirmed. In Raman spectroscopy, the vibrational modes are investigated. The functional groups were determined via FTIR analysis. Using a UV\u2013Visible\u2010NIR spectrophotometer, the absorbance spectrum was determined. There is only one absorption peak visible at 760\u2009nm for the FeNiMgO\n                    <jats:sub>4<\/jats:sub>\n                    NCs. Differential Scanning Calorimetry (DSC) analysis determines how a chemical decomposes at temperatures higher than a certain threshold in degrees Celsius. The TGA method can be used to examine the thermal stability of a material. The surface morphology is identified by utilizing scanning electron microscopy (SEM). The elemental or chemical composition can be ascertained by EDAX analysis. It is possible to examine surface features using the FeNiMgO\n                    <jats:sub>4<\/jats:sub>\n                    NCs used for XPS analysis. Fluorescence (FL) analysis uses ultraviolet light to excite molecules, which results in the emission of longer wavelength visible light, in order to detect and quantify fluorescence. The time observed the FL emission peak of FeNiMgO\n                    <jats:sub>4<\/jats:sub>\n                    NCs is first observed at 501\u2009nm in this article, and a short wavelength with a wide bandgap can be applied to LED applications.\n                  <\/jats:p>","DOI":"10.1002\/bio.70311","type":"journal-article","created":{"date-parts":[[2025,9,9]],"date-time":"2025-09-09T05:41:33Z","timestamp":1757396493000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Investigation on Optical, Thermal, and Fluorescence Studies of Iron Nickel Magnesium Tetraoxide (FeNiMgO\n                    <sub>4<\/sub>\n                    ) Nanocomposites for Light\u2010Emitting Diode Devices"],"prefix":"10.1002","volume":"40","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8130-2830","authenticated-orcid":false,"given":"J.","family":"Thirupathy","sequence":"first","affiliation":[{"name":"Department of Physics Saveetha 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