Sol-gel spin coated BaTiO₃:Eu³⁺ thin films on fused silica substrate were thermally annealed between 400°C and 800°C. The multilayer films were doped with Eu³⁺ which was limited to 10 mol % doping concentration. Standard physical and optical characterizations were performed in addition to excitation-emission and UVPL spectroscopy. The films were amorphous at temperatures below 600°C and exhibited stronger luminescence at 613.0 nm (⁵D₀ → ⁷F₂) than crystalline films. Optical energy band-gap ranged from 3.825 eV (crystalline) to 4.325 eV (amorphous) and the amorphous films’ CIE showed excellent red coordinates whilst red/orange (R/O) asymmetry ratio shows tailored emission color is possible.

将熔融石英衬底上的溶胶-凝胶旋涂的BaTiO ₃：Eu ³⁺薄膜在400°C至800°C之间进行热退火。多层膜掺杂有限制为10mol％掺杂浓度的Eu ³⁺。除了激发发射和UVPL光谱分析外，还进行了标准的物理和光学表征。该膜在低于600°C的温度下为非晶态，并且在613.0 nm（⁵ D ₀  →  ⁷ F ₂）处显示出比结晶膜更强的发光。光能带隙范围为3.825 eV（晶体）至4.325 eV（非晶），非晶膜的CIE显示出极好的红色坐标，而红色/橙色（R / O））不对称比表明量身定制的发射颜色是可能的。