Deep Ultraviolet LEDs [electronic resource] : Understanding the Low External Quantum Efficiency /
Zhang, Zi-Hui.author.
Chu, Chunshuang.author.
Tian, Kangkai.author.
Zhang, Yonghui.author.
This book highlights the origin of low external quantum efficiency for deep ultraviolet light-emitting diodes (DUV LEDs). In addition, it puts forward solutions for increasing the internal quantum efficiency and the light extraction efficiency of DUV LEDs. The book chiefly concentrates on approaches that can be used to improve the crystalline quality, increase carrier injection, reduce the polarization-induced electric field within multiple quantum wells, suppress the TM polarization emission, and enhance the light escape from the semiconductor layer. It also demonstrates insightful device physics for DUV LEDs, which will greatly benefit the optoelectronic community.
1.Introduction -- 2.Increase the IQE by improving the crystalline quality for DUV LEDs -- 3.Improve the current spreading for DUV LEDs -- 4.Improve the hole injection to enhance the IQE for DUV LEDs -- 5.Enhance the electron injection efficiency for DUV LEDs -- 6.Screen the polarization induce electric field within the MQWs for DUV LEDs -- 7.Thermal management for DUV LEDs -- 8.The light extraction efficiency for DUV LEDs -- 9. Conclusions and outlook.
This book highlights the origin of low external quantum efficiency for deep ultraviolet light-emitting diodes (DUV LEDs). In addition, it puts forward solutions for increasing the internal quantum efficiency and the light extraction efficiency of DUV LEDs. The book chiefly concentrates on approaches that can be used to improve the crystalline quality, increase carrier injection, reduce the polarization-induced electric field within multiple quantum wells, suppress the TM polarization emission, and enhance the light escape from the semiconductor layer. It also demonstrates insightful device physics for DUV LEDs, which will greatly benefit the optoelectronic community.
Optical materials.
Microwaves.
Optical and Electronic Materials.
Microwaves, RF and Optical Engineering.
Optics, Lasers, Photonics, Optical Devices.
Signal, Image and Speech Processing.