公开(公告)号：US20230369538A1

公开(公告)日：2023-11-16

申请号：US18309994

申请日：2023-05-01

Applicant: The Regents of the University of California

Inventor： Michael Wang ,  Christian J. Zollner ,  Yifan Yao ,  Michael Iza ,  Shuji Nakamura

IPC: H01L33/06 ,  H01L33/22 ,  H01L33/00

CPC classification number: H01L33/06 ,  H01L33/22 ,  H01L33/0075 ,  H01L33/0008

Abstract: A multilayer structure comprising regions of higher aluminum (Al) composition as compared to adjacent layers, in combination with an undulating active region and controlled buffer layer crystal quality, promotes radiative recombination and improves the performance and efficiency of ultraviolet (UV) or far-UV light-emitting diodes (LEDs), laser diode (LDs), or other light emitting devices.