Description:
Invention Summary
Since CNT (carbon nanotube) has outstanding thermal conductivity over all wavelength regimes, it is a good material for LED (light emitting diode) cooling. A CNT deposition coating by functionalizing CNTs increase coating compatibility. The invention is a functionalized carbon nanotube (FCNT)-deposited surface. Nanofluidic FCNTs aggregate and lead to a porous surface, contributing to radiative heat dissipation.
Market Opportunity
The invention is applied to heat dissipating plates for a light emitting diode (LED), and a head lamp for an automobile. High density heat shortens the life of LEDs substantially. Black anodizing has been commonly used for aluminum-based cooling fins. However, black anodizing consists of several consecutive surface treatment processes: electropolishing, anodizing, dyeing, and sealing. Although black anodized cooling fins contribute to radiative heat dissipation, there have been demands for enhanced cooling and the development of a more cost-effective method.
Features & Benefits
A combined effect of augmented conduction and radiation via FCNT-deposited porous surface can effectively reduce heat generated from LED compared to existing black anodized surface.
Functionalized-CNT-deposited coating leads to almost 25% enhanced cooling performance under natural convection conditions compared to non-surface-treated fin.
Intellectual Property
Patents filed in US, China, Germany, and South Korea