A new path in lighting and display: white light emitting diode with a single active layer

• 作者: Yoshio Bando
• 来源期刊: 科学通报（英文版）
• 年，卷（期）: 2021,（9）
• 所属期刊栏目: RESEARCH HIGHLIGHTS
• 页码范围: 860-861
• 页数: 2页
• 语种: 英文

摘要

Light sources, especially white light sources, are indispensable and their development is strongly correlated with the progress of our technology-based society.White light sources have evolved from the primitive flame-based devices of 600,000 years ago to the current LED and electroluminescence devices, and continue to illuminate human activities and technological achievements.The 2014 Nobel Prize in Physics was awarded to Professor Shuji Nakamura et al.for their outstanding contributions in the invention of blue light emitting diodes and white light emitting diodes (WLED), which have become some of the most important sources for lighting, televisual displays, and for other applications [1].Meanwhile, over the last two decades, new light sources including organic emitter-based OLEDs [2,3] and quantum dot (QD)-based QLEDs [4,5] have also been developed.These technologies are expected to be applied in future lighting displays because of their excellent characteristics of ultra-lightness, flexibility, slim profiles of their devices and high color purity.