Fig. 3From: High-speed visible light communication systems based on Si-substrate LEDs with multiple superlattice interlayersOptoelectronic characteristics of LED Samples A, B, and C. a Current–voltage (I-V) characteristics under a CW injection current. b. Output optical power; c Wall-plug efficiency (WPE); d Peak wavelength and full width at half maximum (FWHM) of Samples A, B, and C under various current density (J)Back to article page