Abstract
In the current study CeO2: Cu2+ (0–11 mol%) NPs were synthesized by Aloevera mediated solution combustion method followed by calcination. The synthesized samples were described and their multifunctional characteristics, including photoluminescence, sensor, and supercapacitor features were covered thoroughly. Bragg reflections confirmed single-phased CeO2: Cu2+ NPs with cubic spinel structure belonging to space group Pm3m(221). Crystal size was estimated using both the Scherrer and W-H plot method. The energy gap was computed from the Wood-Taucs relation. The crystallite size increases whereas the energy band gap increases with an increase in dopant concentration. The photoluminescence emission peaks of CeO2:Cu2+ (1–11 mol%) NPs, CIE, and CCT λex= 340 nm unambiguously show that the current nanophosphor might be a promising nanophosphor material for white and blue LEDs. The Cyclic voltammetry analysis was performed on as obtained CeO2: Cu2+ NPs for oxidation and redox peaks. EIS revealed that ion transport kinetics and super-capacitance values were obtained from GCD analysis. Specific capacitance values are found to be in the range 18 to 61 F/g for CeO2: Cu2+ 1 to 11 mol % NPs respectively which are in good agreement with the values obtained from CV analysis. Thus, the present synthesized material might find applications in the field of display technology and energy storage materials.
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