Title :
Carbon Nanotube based heat-sink for solid state lighting
Author :
Santagata, F. ; Almanno, G. ; Vollebregt, Sten ; Silvestri, C. ; Zhang, G.Q. ; Sarro, P.M.
Author_Institution :
Lab. of Electron. Components, Technol. & Mater. (ECTM), Delft Univ. of Technol., Delft, Netherlands
Abstract :
A new carbon-nanotube-based (CNTs) heat sink is developed. Due to their high thermal conductivity and aspect ratio, CNT boundles are used as fins of the heat sink. Fins as high as 300 μm with an aspect ratio of 30 are fabricated. For the thermal characterization of the heat sink, a microheater is integrated with the heat-sink and it is also used as temperature sensor. It is realized by using the low doped silicon bulk as electrical resistor. The sensor shows a sensitivity of 0.6 Ω/K. A thermal characterization is performed to evaluate the heat dissipated by the CNT-based heat-sink. Results show that up to 18% of power reduction can be achieved with the proposed CNTs-based heat-sink configuration.
Keywords :
carbon nanotubes; cooling; heat sinks; lighting; resistors; sensitivity; temperature sensors; thermal conductivity; CNT boundle; carbon nanotube; electrical resistor; heat dissipation; heat-sink; high thermal conductivity; microheater; power reduction; sensor sensitivity; solid state lighting; temperature sensor; thermal characterization; Electrical resistance measurement; Heat sinks; Heating; Resistance; Silicon; Temperature measurement; Temperature sensors; CNTs; LEDs; heat sink;
Conference_Titel :
Nano/Micro Engineered and Molecular Systems (NEMS), 2013 8th IEEE International Conference on
Conference_Location :
Suzhou
Electronic_ISBN :
978-1-4673-6351-8
DOI :
10.1109/NEMS.2013.6559937
