MAGNESIUM DOPING IN BARRIERS IN MULTIPLE QUANTUM WELL STRUCTURES OF III-NITRIDE-BASED LIGHT EMITTING DEVICES
    93.
    发明申请
    MAGNESIUM DOPING IN BARRIERS IN MULTIPLE QUANTUM WELL STRUCTURES OF III-NITRIDE-BASED LIGHT EMITTING DEVICES 审中-公开
    在氮化物发光器件的多个量子结构中的障碍物中的磁珠

    公开(公告)号:US20120107991A1

    公开(公告)日:2012-05-03

    申请号:US13279121

    申请日:2011-10-21

    IPC分类号: H01L33/06 H01S5/343 H01L21/18

    摘要: A III-nitride-based light emitting device having a multiple quantum well (MQW) structure and a method for fabricating the device, wherein at least one barrier in the MQW structure is doped with magnesium (Mg). The Mg doping of the barrier is accomplished by introducing a bis(cyclopentadienyl)magnesium (Cp2Mg) flow during growth of the barrier using metalorganic chemical vapor deposition (MOCVD). The barriers of the MQW structure may be undoped, fully Mg-doped or partially Mg-doped. When the barrier is partially Mg-doped, only portions of the barrier are Mg-doped to prevent Mg diffusion into quantum wells of the MQW structure. The Mg-doped barriers preferably are high Al composition AlGaN barriers in nonpolar or semipolar devices.

    摘要翻译: 具有多量子阱(MQW)结构的III族氮化物系发光器件及其制造方法,其中MQW结构中的至少一个势垒掺杂有镁(Mg)。 通过使用金属有机化学气相沉积(MOCVD)在势垒生长期间引入双(环戊二烯基)镁(Cp2Mg)流来实现势垒的Mg掺杂。 MQW结构的障碍可以是未掺杂的,完全Mg掺杂的或部分Mg掺杂的。 当势垒部分Mg掺杂时,只有部分势垒是Mg掺杂的,以防止Mg扩散到MQW结构的量子阱中。 Mg掺杂的栅极优选是非极性或半极性器件中的高Al组分AlGaN屏障。