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Improved Light Extraction for Solid State Lighting

SUMMARY Lehigh University has developed a new, low-cost method to achieve enhanced light extraction efficiency for III-Nitride LEDs. Conventional LEDs with planar emission surface suffers from limited external quantum efficiency. The large refractive index difference in the semiconductor / air interface results in total internal reflection. This leads...

Published: 8/2/2021 | Inventor(s): Nelson Tansu, James Gilchrist, Yik-Khoon Ee, Pisist Kumnorkaew, Ronald Arif

Keywords(s): Diagnostic Devices/Treatments, LED, Light Emitting Diodes, Optoelectronic Emitters

Category(s): Electronics