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Micro-light-emitting diodes (micro-LEDs) with high modulation rates and low power consumption could attract growing attention as visible light communication (VLC) technology advances. The designed and fabricated semi-polar micro-LEDs have achieved high bandwidth at low current injection due to the reduced quantum-confined Stark effect (QCSE), which was significantly greater than that of typical c-plane at the same current injection. Semi-polar green micro-LEDs got a &#x2212;3 dB bandwidth that surpasses 500 MHz and 1 GHz at low current densities of 43.8 A&#x002F;cm 2  and 120.6 A&#x002F;cm 2 , while blue micro-LEDs exceed 500 MHz at low current densities of 76.6 A&#x002F;cm 2 , respectively. Additionally, the free space VLC system has shown semi-polar blue and green micro-LED transmission data rates of 3.495 Gbps (433 A&#x002F;cm 2 ) and 3.483 Gbps (402 A&#x002F;cm 2 ) respectively. Semi-polar micro-LEDs, which can achieve low power consumption and high bandwidth, are anticipated to play a significant role in the development of energy-efficient VLC in the future.

High Bandwidth Semi-Polar InGaN/GaN Micro-LEDs With Low Current Injection for Visible Light Communication