Abstract
In this communication, the influence of Zr4+ ions on structural, microstructural, optical and thermal behavior of CeO2 was investigated. Structural parameters of sol-gel derived samples were assessed by XRD, FTIR and Raman spectroscopies. Refined profile parameters were determined through Rietveld refinement. XRD and Raman studies indicated cubic fluorite phase of CeO2 and occurrence of oxygen vacancies as defects attributed to distortion in local symmetry of O2− ions around Ce4+ ions, hence found applications in oxygen storage devices. UV–visible depicted the blue shifting of absorption edge on increasing Zr4+ ions concentration, into Ce4+ions lattice, hence found utility in photonic devices. Violet, blue and green PL emissions were observed and committed due to various defect states and oxygen vacancies. CIE and CCT coordinates demonstrated their potential applications in display devices. The synthesized materials with enhanced structural and optical characteristics have their wide employability as an active component in sophisticated optoelectronic device fabrication.
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