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

fYear

2013

fDate

7-10 April 2013

Firstpage

1214

Lastpage

1217

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/NEMS.2013.6559937

Filename

6559937