On-chip GaN-based dual-color micro-LED arrays and their application in visible light communication

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Integrated multi-color micron-sized light emitting diode (micro-LED) arrays have
been demonstrated in recent years for display applications; however, their potential as visible light communication (VLC) transmitters is yet to be fully explored. In this work, we report on the fabrication and characterization of on-chip dual-color micro-LED arrays and their application in VLC. For this purpose, blue-green and blue-violet micro-LED arrays were fabricated by transfer printing blue-emitting micro-LEDs onto the substrate of green and violet micro-LEDs, respectively. The potential of these dual-color micro-LED arrays as VLC transmitters is demonstrated with respective error-free data rates of 1.79 and 3.35 Gbps, achieved by the blue-green and blue-violet devices in a dual wavelength multiplexing scheme.
Original languageEnglish
Pages (from-to)A1517-A1528
Number of pages12
JournalOptics Express
Issue number20
Early online date12 Sep 2019
Publication statusPublished - 30 Sep 2019


  • visible light communication
  • micro-LED array
  • dual-color

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