中文摘要：

利用溶胶凝胶法合成了一种新颖的红色发光粉γ-LiAlO2：Eu^3＋,通过X射线衍射（XRD）和扫描电子显微镜（SEM）对发光粉颗粒结构和形貌进行分析，结果表明900℃时得到单相的γ-LiAlO2．晶体结晶度高．粉体颗粒均匀松散．粒径在2μm左右,发光光谱表明溶胶凝胶法制备的γ-LiAlO2：Eu^3＋磷光体产生强烈的Eu^3＋特征发光，增加Eu的掺杂比例和提高烧结温度有助于提高磷光体发光性能．

英文摘要：

A novel Eu^3＋-doped γ-LiAlO2 phosphor was prepared by sol-gel process firstly. The phosphor powders showed the pure phase crystal of tetragonal 7-LiAlO2 and well-defined crystal with a mean size of around 2μm, which characterized by X-ray powder diffraction （XRD） and scanning electron microscopy （SEM）. Upon excitation at 395 nm, the phosphor exhibited an intense Eu^3＋ luminescence about 612 nm. The luminescence intensity enhanced with the Eu/Li molar ratio or heating temperature increasing.