Improve the Current Spreading for DUV LEDs
After the crystalline quality for Al-rich AlGaN layer is significantly improved, it is then the time to design novel DUV LED structures. DUV LEDs are driven electrically which get carrier transport and current injection involved. One of the challenges is the current crowding effect, which easily occurs in the DUV LEDs. Hence, it is important to show people physical images on the underlying reason for the current crowding and the solution proposals for current spreading.
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