简介：Theinfluenceofp-typeGaN(pGaN)thicknessonthelightoutputpower(LOP)andinternalquantumefficiency(IQE)oflightemittingdiode(LED)wasstudiedbyexperimentsandsimulations.TheLOPofGaN-basedLEDincreasesasthethicknessofpGaNlayerdecreasesfrom300nmto100nm,andthendecreasesasthethicknessdecreasesto50nm.TheLOPofLEDwith100-nm-thickpGaNincreasesby30.9%comparedwiththatoftheconventionalLEDwith300-nm-thickpGaN.ThevariationtrendofIQEissimilartothatofLOPasthedecreaseofGaNthickness.ThesimulationresultsdemonstratethatthehigherlightefficiencyofLEDwith100-nm-thickpGaNisascribedtotheimprovementsofthecarrierconcentrationsandrecombinationrates.
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