Nitride Micro-LEDs toward Biointegrated Platforms: Growth, Integration, and Emerging Applications

Area of Science:

• Optoelectronics
• Materials Science
• Biomedical Engineering

Background:

• Microlight-emitting diodes (μLEDs) are advanced light sources with superior brightness, efficiency, and color purity.
• Their unique properties make them ideal for next-generation consumer electronics and biointegrated platforms.
• Recent progress in nitride-based μLEDs is accelerating their use in physiological sensing and therapy.

Purpose of the Study:

• To highlight advances in nitride μLED technology for biointegrated systems.
• To discuss progress in epitaxy and integration strategies for μLEDs.
• To provide a perspective on future opportunities for μLED-based biointegrated devices.

Main Methods:

• Review of recent breakthroughs in nitride epitaxy for biocompatible μLEDs.
• Discussion of integration strategies for assembling μLEDs on unconventional platforms.
• Illustration of applications in wearable and implantable sensing and therapeutic systems.

Main Results:

• Development of efficient, biocompatible, all-nitride-based full-color visible μLEDs.
• Advancement of integration strategies for soft, unconventional platforms and biological interfacing.
• Demonstration of potential for nitride μLEDs to reshape wearable and implantable systems.

Conclusions:

• Nitride μLED technology is transforming biointegrated optoelectronic systems.
• Further research is needed to overcome challenges and realize the full potential of μLED-based biointegrated devices.
• Future directions include enhanced biocompatibility, integration, and expanded applications in sensing and therapy.