White Light-Emitting Diodes With High Color Quality Fabricated Using Phosphor-in-Glass Integrated With Liquid-Type Quantum Dot

被引：27
作者：
Wang, Hao [1 ]
Mou, Yun [2 ]
Peng, Yang [2 ]
Liu, Jiaxin [2 ]
Liang, Renli [1 ]
Chen, Mingxiang [2 ]
Dai, Jiangnan [1 ]
Chen, Changqing [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Hubei, Peoples R China
[2] Huazhong Univ Sci & Technol, Sch Mech Sci & Engn, Wuhan 430074, Hubei, Peoples R China
来源：
IEEE ELECTRON DEVICE LETTERS | 2019年 / 40卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Liquid-type quantum dot; phosphor-in-glass; white light-emitting diodes; high color rendering index; OPTICAL-PERFORMANCE; CONVERTER; LEDS;
D O I：
10.1109/LED.2019.2897718
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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.
引用
收藏
页码：601 / 604
页数：4
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