会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 94. 发明授权
    • Light emitting device
    • 发光装置
    • US5481558A
    • 1996-01-02
    • US261150
    • 1994-06-14
    • Masao IkedaToyoharu Ohata
    • Masao IkedaToyoharu Ohata
    • H01S5/00H01S5/327H01S3/19
    • H01L33/0087H01S5/327
    • According to the present invention, a p-type ZnSe or p-type ZnSSe buffer layer is formed on a p-type GaAs substrate through at least single layer made of AlGaInP-based material and a II/VI-compound laser structure is formed on the p-type ZnSe or p-type ZnSSe buffer layer. Further, an AlGaAs-based buffer layer is provided between the substrate and the AlGaInP-based buffer layer. Further, the AlGaAs-based buffer layer has a composition expressed as Al.sub.0.5 Ga.sub.0.4 As and the AlGaInP-based buffer layer has a composition expressed as Al.sub.0.5 In.sub.0.5 P. Furthermore, a composition ratio x of Al in a buffer layer expressed as Al.sub.x Ga.sub.1-x As is modulated from 0 to 0.6 and a composition ratio y of Al in a buffer layer expressed as (Al.sub.y Ga.sub.1-y).sub.0.5 In.sub.0.5 P is modulated from 0 to 1. According to the present invention, an operation voltage of the II/VI-compound semiconductor laser can be reduced and the green or blue color semiconductor laser of low operation voltage can be obtained. This semiconductor laser can continuously be operated at room temperature and also operated with a long life span.
    • 根据本发明,通过至少由AlGaInP基材料制成的单层,在p型GaAs衬底上形成p型ZnSe或p型ZnSSe缓冲层,并且将II / VI复合激光器结构形成在 p型ZnSe或p型ZnSSe缓冲层。 此外,在基板和基于AlGaInP的缓冲层之间设置基于AlGaAs的缓冲层。 此外,基于AlGaAs的缓冲层具有以Al0.5Ga0.4As表示的组成,AlGaInP基缓冲层具有以Al 0.5 In 0.5 P表示的组成。 此外,以Al x Ga 1-x As表示的缓冲层中的Al的组成比x从0变为0.6,并且将表示为(AlyGa1-y)0.5In0.5P的缓冲层中的Al的组成比y从0调制为 根据本发明,可以降低II / VI化合物半导体激光器的工作电压,并且可以获得低操作电压的绿色或蓝色半导体激光器。 该半导体激光器可以在室温下连续工作,并且寿命长。