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A study on the effect of Mg doping in quantum‐well (QW) layers on dual‐wavelength light‐emitting diodes (LEDs) was performed. A series of dual‐wavelength LEDs with different Mg doping conditions were fabricated. According to electroluminescence measurement, as the Mg doping concentration and regions varied, improved hole distribution and bottom‐QW emission was achieved. This result is in accord with...
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