Abstract A new phosphor of La 3−3x Eu 3x Ga 4 TiO 14 (x = 0–0.1) was synthesized via the solid-state reaction. The structure refinements verified the pure trigonal structure. La 3 Ga 4 TiO 14 has a self-activated white-luminescence at room temperature. This is special in comparison with the reported Ti-phosphors, which usually show the room-temperature quenched blue or yellow emissions. The near-UV and blue-light can efficiently excite La 3−3x Eu 3x Ga 4 TiO 14 (x = 0.01–0.1) showing the orange-red tunable luminescence with a dependence on Eu 3+ -contents. The experimental lamps were fabricated using LED-chips in combination with single phosphor of La 3−3x Eu 3x Ga 4 TiO 14 (x = 0, 0.03, 0.07) driven by 2 mA current. This is a promising candidate in solid-state lighting and displays.

中文翻译：

---

自激活和 Eu 3+ 激活的 La 3 Ga 4 TiO 14 多色荧光粉

摘要 通过固态反应合成了一种新型的La 3−3x Eu 3x Ga 4 TiO 14 (x = 0–0.1) 荧光粉。结构改进验证了纯三角结构。La 3 Ga 4 TiO 14 在室温下具有自激活白光。与报道的钛荧光粉相比，这是特别的，钛荧光粉通常显示室温淬火蓝色或黄色发射。近紫外光和蓝光可以有效地激发 La 3−3x Eu 3x Ga 4 TiO 14 (x = 0.01–0.1)，显示出依赖于 Eu 3+ 含量的橙红色可调发光。实验灯是使用 LED 芯片与由 2 mA 电流驱动的 La 3-3x Eu 3x Ga 4 TiO 14 (x = 0, 0.03, 0.07) 的单一磷光体组合制造的。这是固态照明和显示器的一个很有前途的候选者。