公开(公告)号：US20130228747A1

公开(公告)日：2013-09-05

申请号：US13855540

申请日：2013-04-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sang Heon HAN ,  Joo Young CHEON ,  Je Won KIM ,  Dong Ju LEE ,  Dong Chul SHIN ,  Hyun Wook SHIM ,  Jae Woong HAN

IPC: H01L33/06

CPC classification number: H01L33/06 ,  H01L33/32

Abstract: There is provided a nitride semiconductor light emitting device including an active layer having enhanced external quantum efficiency at both low and high current density. The nitride semiconductor light emitting device includes a first conductivity type nitride semiconductor layer; an active layer disposed on the first conductivity type nitride semiconductor layer and having a plurality of quantum well layers and at least one quantum barrier layer alternately arranged; and a second conductivity type nitride semiconductor layer disposed on the active layer. The plurality of quantum well layers disposed adjacent to each other include first and second quantum well layers having different thicknesses.

Abstract translation: 提供一种氮化物半导体发光器件，其包括在低电流和高电流密度下具有增强的外部量子效率的有源层。 氮化物半导体发光器件包括第一导电型氮化物半导体层; 设置在所述第一导电型氮化物半导体层上并具有交替布置的多个量子阱层和至少一个量子势垒层的有源层; 以及设置在有源层上的第二导电型氮化物半导体层。 彼此相邻布置的多个量子阱层包括具有不同厚度的第一和第二量子阱层。