When compared to other light sources that have been made so far, white light emitting diodes (WLED) have been considered to be the most efficient. Of which, multiple quantum well (MQL) LED shows a reasonably better performance than other technology of white light production, except in the efficiency droop, which is found at high current density. Method for improving the efficiency droop at high current density is discussed and analyzed in this paper. The analysis is done through TCAD simulation, and it has been found that the efficiency droop can be minimized as low as 6% by the technology adopted in quantum barrier of quantum well arrangement. It is also found that the light quality has also increased.

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