White Light-Emitting Diodes With High Color Quality Fabricated Using Phosphor-in-Glass Integrated With Liquid-Type Quantum Dot
White Light-Emitting Diodes With High Color Quality Fabricated Using Phosphor-in-Glass Integrated With Liquid-Type Quantum Dot
复制标题
使用玻璃荧光粉与液体量子点集成制造的高色质白光发光二极管
DOI：
10.1109/led.2019.2897718
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发表时间：
2019
影响因子：
4.9
通讯作者：
Chen Changqing
中科院分区：
文献类型：
--
作者：
Wang Hao;Mou Yun;Peng Yang;Liu Jiaxin;Liang Renli;Chen Mingxiang;Dai Jiangnan;Chen Changqing
在这封信中，高品质的白色发光二极管（WLED）的制作相结合的YAG：Ce 3+荧光粉在玻璃（PiG）和红色液体型量子点（LQD）。基于PiG_LQD的WLED在100 mA的电流下实现了具有优异显色指数（CRI; Ra = 93.9，R9 = 97.7和R13 = 98.1）的暖白色光。相应的相关色温和发光效率（LE）分别为3764 K和62 lm/W。与集成有固体型QD的PiG相比，PiG_LQD表现出高LE、优异的CRI和低表面温度，这是由于防止了固态下QD的自聚集和表面缺陷以及PiG_LQD的有效散热。结果表明，所制备的WLED是有前途的高品质照明应用的照明器件。
In this letter, high-quality white light-emitting diodes (WLEDs) were fabricated by combining a YAG:Ce3+ phosphor-in-glass (PiG) with a red liquid-type quantum dot (LQD). The PiG_LQD-based WLEDs achieve a warm white light with an excellent color rendering index (CRI; Ra = 93.9, R9 = 97.7, and R13 = 98.1) at the current of 100 mA. The corresponding correlated color temperature and luminous efficacy (LE) are 3764 K and 62 lm/W, respectively. In comparison with the PiG integrated with solid-type QD, the PiG_LQD exhibits high LE, excellent CRI, and low surface temperature due to the prevention of self-aggregation and surface defects of QDs in the solid state and the efficient heat dissipation of PiG_LQD. The results indicate that the fabricated WLEDs are promising lighting devices for high-quality lighting applications.