Achieving zero efficiency droop in highly efficient n-polar algan tunnel junction-based 254 nm duv led

HIGHLIGHTS

• What: The research demonstrates that the 254 nm‐band TJ‐LEDs surpass conventional polar LEDs in several aspects after optimization of both dopant levels as well as structural thicknesses of the new TJ. In this work, two different types of LEDs structures are investigated via simulations: the conventional LED (C‐LED) and tunnel junction‐based LED (TJ‐LED). Similarly, the lowered 𝜱h can effectively promote hole injection from p-region toward MQWs and significantly contribute to the radiative recombination rate, which is the main reason of high IQE in the TJ-LED . The auger recombination is the . . .
  

   

  

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