Light Emitting Diodes: Materials to Applications

Dear Colleagues,

Light-emitting diodes (LEDs) have reshaped the modern technological landscape, evolving from simple indicators to cornerstone components in advanced lighting, displays, and optical systems. Rooted in advances in wide-bandgap semiconductors such as GaN and AlN, as well as organic emissive materials, both inorganic LEDs and OLEDs have achieved remarkable progress in efficiency, stability, and integration. The continual development of epitaxial growth methods, quantum structure design, and light extraction techniques has enabled LEDs to reach remarkable levels of performance across the visible and ultraviolet spectrum. Furthermore, the emergence of mini/micro/nano-LEDs, perovskite emitters, and flexible optoelectronics opens new frontiers in high-performance display systems, AR/VR, optical communication, and biomedical interfaces. At the intersection of materials science, device physics, and system engineering, the LED field embodies interdisciplinary innovation with a global impact. This Special Issue aims to provide a comprehensive platform for the latest advances spanning the full LED technology spectrum, from fundamental material development to device integration. By bringing together insights across materials science, physics, and engineering, this collection will highlight the interdisciplinary progress that drives the next generation of LED technologies. We welcome original research articles, reviews, and perspectives that reflect both fundamental breakthroughs and translational innovations.

Prof. Dr. Shengjun Zhou
Guest Editor

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