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- W2913897946 abstract "We report the performance enhancement of AlGaN-based deep ultraviolet light-emitting diodes (DUV LEDs) using AlGaN nanoporous template (NPT). The NPT was fabricated by the electrochemical etching method and served as the dislocation filtering layer and strain relieving layer. The n-AlGaN laterally regrown on NPT showed reduced dislocation density and mitigated compressive strain comparing with that on the as-grown template (AGT). A 23% improvement of internal quantum efficiency was achieved for the multiple quantum wells thereon. Moreover, the nanopores in the NPT transformed into elongated air voids during high temperature growth process, which could facilitate the escaping of photons by scattering and thus improve the light extraction efficiency. As a consequence, the DUV LED based on NPT demonstrated an increase of the light outpower by 50% at 20 mA than that on AGT." @default.
- W2913897946 created "2019-02-21" @default.
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- W2913897946 date "2019-02-11" @default.
- W2913897946 modified "2023-10-16" @default.
- W2913897946 title "Deep ultraviolet light-emitting diodes with improved performance via nanoporous AlGaN template" @default.
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- W2913897946 doi "https://doi.org/10.1364/oe.27.004917" @default.
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