Varshney, Mayora Sharma, Aditya Chae, Keun Hwa Kumar, Shalendra Won, Sung Ok 2024-01-19T22:03:43Z 2024-01-19T22:03:43Z 2021-09-03 2018-08 0022-3697 https://pubs.kist.re.kr/handle/201004/121086 ZrO2-CeO2 mixed ceramics were studied for their local electronic structure and dielectric properties. X-ray diffraction (XRD), scanning electron microscope (SEM), X-ray absorption fine structure (XAFS) and frequency dependence dielectric constant measurements were performed on the samples. Rietveld refinements and quantitative phase analysis of ZrO2-CeO2 ceramics showed an increased concentration of tetragonal ZrO2 and cubic Zr0.5Ce0.5O2 phases at the expense of parent monoclinic ZrO2. The morphology of the ZrO2-CeO2 ceramics remained invariant for all of the fractional percentages of CeO2 loading. O K-edge and Ce M-5,M-4-edge NEXAFS showed the oxygen vacancies and Ce3+-Ce4+ redox pair formation in ZrO2-CeO2 ceramics, which is further corroborated by Ce L-3-edge XAFS. The higher CeO2 molar ratios containing ZrO2-CeO2 ceramics showed higher epsilon', epsilon '' and sigma(ac) and lower tan delta. English PERGAMON-ELSEVIER SCIENCE LTD X-RAY-ABSORPTION DOPED CEO2 NANOPARTICLES ZRO2 THIN-FILMS ELECTRICAL-PROPERTIES ZIRCONIA STABILIZATION PHASE-TRANSFORMATION OPTICAL-PROPERTIES TRANSITION PHOTOLUMINESCENCE ENERGY Electronic structure and dielectric properties of ZrO2-CeO2 mixed oxides Article 10.1016/j.jpcs.2018.04.007 1 JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, v.119, pp.242 - 250 JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS 119 242 250 scie scopus 000432765100030 2-s2.0-85045570481 Chemistry, Multidisciplinary Physics, Condensed Matter Chemistry Physics Article X-RAY-ABSORPTION DOPED CEO2 NANOPARTICLES ZRO2 THIN-FILMS ELECTRICAL-PROPERTIES ZIRCONIA STABILIZATION PHASE-TRANSFORMATION OPTICAL-PROPERTIES TRANSITION PHOTOLUMINESCENCE ENERGY ZrO2-CeO2 local electronic structure dielectric ceramics