Optical properties of photoluminescent polycrystalline CuLa0.98Eu0.02O2 thin film prepared by pulsed laser deposition at room temperature |
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| Authors: | Fumito Fujishiro Ryohei Sekimoto Takuya Hashimoto |
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| Affiliation: | 1. Laboratory of Semiconductor Materials and Metallic Oxides, Faculty of Physics, USTHB, B.P.32, 16111 Algiers, Algeria;2. Laboratory of Storage and Renewable Energy, Faculty of Chemistry, USTHB, B.P.32, 16111 Algiers, Algeria |
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| Abstract: | Smooth CuLa0.98Eu0.02O2 thin film has successfully been prepared by pulsed laser deposition method at room temperature. Crystal structure of the obtained film was almost same as that of CuLa0.98Eu0.02O2 polycrystalline ceramic. Orange luminescence with high intensity due to 5D0 – 7F0,1 transitions of Eu3+, which was an evidence of Eu3+ substitution for La3+ site in LaO6 octahedra with the inversion symmetry, was also observed in the obtained film. The optical band gap of CuLa0.98Eu0.02O2 was measured to be 2.85 eV from absorption spectroscopy. |
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