HKU Engineers Achieve Blue LED Emission Control via GaN Stretching
Researchers at the University of Hong Kong have developed a method to control the emission color of gallium nitride (GaN) from ultraviolet to blue light through mechanical stretching. This advancement opens new avenues for semiconductor applications, including power transistors and micro-LED displays.
Theia Market Signal Identification - AI Assisted
The University of Hong Kong's engineering team has successfully demonstrated a technique to transition the emission color of gallium nitride (GaN) from ultraviolet to blue by applying mechanical stretching, achieving elastic deformation up to 6.8% and a tensile strength of about 11 GPa. This reversible process enables GaN to shift its bandgap from 3.41 eV to 3.08 eV, facilitating practical applications in micro-displays and intelligent lighting.
The research highlights a purely physical control method that does not require chemical modifications and offers potential for innovative uses in semiconductor technology. Future applications may extend to biosensing, enhancing the versatility of GaN materials.
Comments