(Color online) Electroluminescence spectra of selected 0.1 mm2 single heterostructure LEDs under pulsed current (50–100 mA), on-wafer testing at 10 kHz with a 10% duty cycle.
(Color online) Electroluminescence spectra of a single 0.1 mm2 single heterostructure LED under pulsed current, on-wafer testing at 10 kHz with a 10% duty cycle. Spectra are shown for current densities ranging from 20 to 100 A/cm2 with 10 A/cm2 (10 mA) steps. Insets: (a) optical micrograph of a typical p-side-down SH LED with illumination and without an applied bias and (b) optical micrograph of this LED without illumination and under forward bias.
(Color online) (a) Peak wavelength, (b) integrated power, and (c) EQE as a function of current density for the SH LED with spectra shown in Fig. 2 . Each data point is the average of 2–3 measurements and the standard error is shown with error bars.
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