Rapid light output degradation of GaN-based packaged LED in the early stage of humidity test

• Main Authors: Chen, B. K., Li, X., Tan, Cher Ming, Chen, Sihan Joseph
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2013
• Subjects: DRNTU::Engineering::Electrical and electronic engineering
• Online Access: https://hdl.handle.net/10356/102789; http://hdl.handle.net/10220/16477
• Institution: Nanyang Technological University

An initial sharp decrease in the light output of a high-power light-emitting diode is observed when it is exposed to humid condition. TGA and energy-dispersive system analyses confirm the possibility of moisture entrapment in the silicone encapsulation; moreover, the light scattering model verifies...