NITRIDE-BASED LIGHT-EMITTING DEVICE AND METHOD OF MANUFACTURING THE SAME
    2.
    发明申请
    NITRIDE-BASED LIGHT-EMITTING DEVICE AND METHOD OF MANUFACTURING THE SAME 有权
    基于氮化物的发光装置及其制造方法

    公开(公告)号:US20090095976A1

    公开(公告)日:2009-04-16

    申请号:US12335845

    申请日:2008-12-16

    IPC分类号: H01L33/00

    CPC分类号: H01L33/42 H01L33/32

    摘要: Provided are a nitride-based light-emitting device including a transparent electrode made of a transparent conductive oxide having a higher work function than indium tin oxide and a method of manufacturing the same. The nitride-based light-emitting device has a sequentially stacked structure of a substrate, an n-type clad layer, an active layer, a p-type clad layer, and an ohmic contact layer. The ohmic contact layer is formed as a film made of a transparent conductive oxide having a higher work function than indium tin oxide or as a film made of the transparent conductive oxide doped with a metal dopant. Therefore, ohmic contact characteristics with the p-type clad layer are enhanced, thereby ensuring excellent current-voltage characteristics. Furthermore, the high light transmittance of the transparent electrode can increase the emission efficiency of the device.

    摘要翻译: 提供了一种氮化物系发光器件及其制造方法,该氮化物系发光器件包括由比氧化铟锡更高的功函数的透明导电氧化物制成的透明电极。 氮化物系发光器件具有基板,n型覆盖层,有源层,p型覆盖层和欧姆接触层的顺序层叠结构。 欧姆接触层形成为具有比铟锡氧化物更高的功函数的透明导电氧化物或由掺杂有金属掺杂剂的透明导电氧化物制成的膜制成的膜。 因此,与p型覆盖层的欧姆接触特性提高,从而确保优异的电流 - 电压特性。 此外,透明电极的高透光率可以提高器件的发光效率。