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High junction temperature in the LEDs would lead to the reliability problems, such as low quantum efficiency, wavelength shifts, short lifetime, and even catastrophic failure. The effects of various parameters, such as thermal properties of substrates, thermal interface materials (TIM) and heat sinks on the thermal performance of the LED backlight module are investigated experimentally and numerically...
In this paper, we report the fabrication and characteristics of nano-roughened GaN laser lift-off (LLO) light-emitting diodes (LEDs) with different scale surface roughness. The surface roughness of devices was controlled by inductively coupled plasma reactive ion etching. Using this fabrication method to form nano-scaled roughness, the electrical property was almost not degraded. Furthermore, the...
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