Abstract
This paper focuses on the preparation and characterization of crystalline thin films of rare-earth-doped sesquioxides (Y2O3, Lu2O3) grown by pulsed laser deposition on single-crystal (0001) sapphire substrates. X-ray diffraction measurements show that the films with thicknesses between 1 nm and 500 nm were highly textured along the 〈111〉 direction. Using Rutherford backscattering analysis, the correct stoichiometric composition of the films was established. The emission and excitation spectra of europium-doped films with a thickness ≥100 nm look similar to those of the corresponding crystalline bulk material, whereas films with a thickness ≤20 nm show a completely different emission behavior.
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68.55.Jk; 78.66.Nk; 81.15.F
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Bär, S., Huber, G., Gonzalo, J. et al. Pulsed laser deposition of Eu:Y2O3 thin films on (0001) α-Al2O3. Appl. Phys. A 80, 209–216 (2005). https://doi.org/10.1007/s00339-004-3029-8
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DOI: https://doi.org/10.1007/s00339-004-3029-8