公开(公告)号：US20190140150A1

公开(公告)日：2019-05-09

申请号：US16154853

申请日：2018-10-09

Applicant: SORAA, INC.

Inventor： AURELIEN J. F. DAVID ,  MICHAEL J. GRUNDMANN

IPC: H01L33/58 ,  H01L33/32 ,  H01L33/04 ,  H01L33/00 ,  H01L33/02

Abstract: A light-emitting diode (LED) for emitting emitted light having a particular wavelength, said LED comprising: (a) at least one n-doped layer; (b) at least one p-doped layer; (c) an active region comprising at least one layer of light-emitting material disposed between said at least one n-doped layer and said at least one p-doped layer, said active region having an average refractive index, calculated by averaging the LED's refractive index across the thickness of the active region; and (d) at least one low refractive index layer disposed within said particular wavelength of said active region, said at least one low refractive index layer having a refractive index below said average refractive index and a thickness sufficient to limit light being emitted into a guided mode of said active region to no more than 10% of said emitted light.

公开(公告)号：US20160172556A1

公开(公告)日：2016-06-16

申请号：US15051326

申请日：2016-02-23

Applicant: SORAA, INC.

Inventor： AURELIEN J.F. DAVID ,  MICHAEL J. GRUNDMANN

IPC: H01L33/58 ,  H01L33/32 ,  H01L33/04

CPC classification number: H01L33/58 ,  H01L33/0075 ,  H01L33/02 ,  H01L33/04 ,  H01L33/10 ,  H01L33/32

Abstract: A light-emitting diode (LED) for emitting emitted light having a particular wavelength, said LED comprising: (a) at least one n-doped layer; (b) at least one p-doped layer; (c) an active region comprising at least one layer of light-emitting material disposed between said at least one n-doped layer and said at least one p-doped layer, said active region having an average refractive index, calculated by averaging the LED's refractive index across the thickness of the active region; and (d) at least one low refractive index layer disposed within said particular wavelength of said active region, said at least one low refractive index layer having a refractive index below said average refractive index and a thickness sufficient to limit light being emitted into a guided mode of said active region to no more than 10% of said emitted light.

Abstract translation: 一种用于发射具有特定波长的发射光的发光二极管（LED），所述LED包括：（a）至少一个n掺杂层; （b）至少一个p掺杂层; （c）有源区，包括设置在所述至少一个n掺杂层和所述至少一个p掺杂层之间的至少一层发光材料，所述有源区具有平均折射率，其通过将LED的 有效区域的厚度的折射率; 和（d）设置在所述有源区的所述特定波长内的至少一个低折射率层，所述至少一个低折射率层具有低于所述平均折射率的折射率和足以将光发射到引导 所述有源区的模式不超过所述发射光的10％。