Structural and photoluminescence properties of Y2O3 and Y2O3:Ln3+ (Ln = Eu, Er, Ho) films synthesized by plasma electrolytic oxidation of yttrium substrate
作者： Aleksandar Ćirić , Stevan Stojadinović
DOI: 10.1016/J.JLUMIN.2019.116762
关键词: Photoluminescence 、 Plasma electrolytic oxidation 、 Materials science 、 Analytical chemistry 、 Oxide 、 Crystal structure 、 Phase (matter) 、 Doping 、 Emission spectrum 、 Yttrium
摘要: Abstract Plasma electrolytic oxidation (PEO) of yttrium is performed for the first time and shown that Y2O3 trivalent rare-earth ions (Eu3+, Er3+ or Ho3+) doped films can be formed by PEO in alkaline electrolyte without with addition oxide particles (Eu2O3, Er2O3 Ho2O3), respectively. The elements present micro-discharges were identified using optical emission spectroscopy technique. gas plasma temperature (3000 ± 300) K was estimated from intensity distribution within a part an OH spectrum. morphology, chemical composition, crystal structure, formation process photoluminescence (PL) properties investigated. Diffraction patterns show well pronounced reflections inherent to pure cubic phase Y2O3. PL characterization Y2O3:Ln3+ (Ln = Eu, Er, Ho) through excitation spectra. An intense red observed Y2O3:Eu3+ green Y2O3:Er3+ Y2O3:Ho3+ films.
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