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HETEROGENEOUS TUNNELING JUNCTIONS FOR HOLE INJECTION IN NITRIDE BASED LIGHT-EMITTING DEVICES
HETEROGENEOUS TUNNELING JUNCTIONS FOR HOLE INJECTION IN NITRIDE BASED LIGHT-EMITTING DEVICES
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机译:氮化物发光器件中异质隧穿结的空穴注入
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摘要
Light-emitting devices having a multiple quantum well (MQW) pin diode structure and methods of making and using the devices are provided. The light-emitting devices include: a tunneling heterojunction as a hole injector; an n-type contact; and a light-emitting active region disposed between the tunneling heterojunction and the n-type contact. The tunneling heterojunction facilitates interband tunneling hole injection under bias, whereby electrons in the valence band of a p-type group III-nitride semiconductor tunnel directly into the conduction band of the n-type doped semiconductor, resulting in the generation of holes in the p-type group III-nitride.
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