Carbon nano partitions for heat dissipation

We fabricated carbon nano-partitions (CNPs) which vertically standing on the metal substrates by radio-frequency magnetron sputtering for dissipating heat applications. Considerable enhancement of the conductive heat transfer has been confirmed and the enhancement depends on the spacing density of nano partitions. The optimum nano-porous density could enhanced the heat transfer when the lower density CNP was made. In our experiments, the enhancement is basically according to the system thermal resistance and it can be reduced by 7.8% to 16.8% which compared with the control samples. Besides, we also make a trial on LEDs. The light output of different colored LEDs responds differently to temperature changes. For the most sensitive color, amber, we can diminish the decrease of light output power by about 15% and the dominant wavelengths shift by about 2nm less than the one is not coated on CNPs.