Collaborative Innovation Center of Chemical Science and Engineering, Key Laboratory of Advanced Energy Materials Chemistry (MOE), College of Chemistry, Nankai University, Tianjin 300071, China.
Dalton Trans. 2018 Jun 25;47(25):8427-8433. doi: 10.1039/c8dt01477a.
Single-phase white phosphors could overcome many drawbacks of traditional phosphors, and warm white light phosphors have been considered suitable for indoor illumination applications. Thus, synthesizing new single-phase warm white phosphors is significant for the production of LEDs. Based on the above considerations, a novel single component warm white light phosphor SmxTbyDy0.2-x-y-metal organic frameworks (MOFs) has been prepared successfully in this study. The compound Sm0.1Tb0.04Dy0.06-MOF shows ideal warm white light emission with CIE coordinates (0.333, 0.3522), a color rendering index (CRI) value of 86.7, a low correlated color temperature (CCT) value of 4444 K, and good heating/cooling circulation. In addition, the LED devices fabricated with this novel warm white light phosphor have excellent warm white light quality even at high temperatures, which is necessary for its practical application.
单相白色荧光粉可以克服传统荧光粉的许多缺点，而暖白色荧光粉已被认为适合室内照明应用。因此，合成新型单相暖白色荧光粉对于 LED 的生产具有重要意义。基于上述考虑，本研究成功制备了一种新型单相暖白色发光材料 SmxTbyDy0.2-x-y-金属有机骨架（MOFs）。化合物 Sm0.1Tb0.04Dy0.06-MOF 表现出理想的暖白色发光，其 CIE 坐标为（0.333，0.3522），显色指数（CRI）值为 86.7，相关色温（CCT）值为 4444 K，且具有良好的加热/冷却循环性能。此外，用这种新型暖白色荧光粉制备的 LED 器件即使在高温下也具有优异的暖白光质量，这对于其实际应用是必要的。
