荧光粉
材料科学
发光二极管
白色(突变)
发光效率
白光
工程物理
光电子学
二极管
白皮书
炸薯条
电信
计算机科学
纳米技术
工程类
图层(电子)
历史
基因
考古
生物化学
化学
作者
Noor Ul Islam,Muhammad Usman,Saad Rasheed,Tariq Jamil
标识
DOI:10.1149/2162-8777/ac26d8
摘要
With the advancement in technology of efficient and high-quality lighting, white light-emitting diodes (WLEDs) are gradually gaining ground with their ever-increasing high efficiency, energy density excitation, high device stability, and high output power. In this review, various technological approaches that are used to produce white light are presented. The progress made in improving the efficiency of white LEDs, using different phosphors along with a blue LED chip, is discussed. Phosphor-based approach is better and efficient in comparison to other approaches to generate white light. Using different phosphors, the improvement in luminous efficacy of white LEDs is reviewed. This review may serve as a roadmap for easily-fabricated, low-cost, and a longer lifespan white light-emitting diodes for indoor and outdoor applications.
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