Abstract
LED (light emitting diode) technology has been developed rapidly in recent years in the area of illumination applications. However, the rate of heat generation increases with the LED illumination intensity. The LED chip temperature is critical to determine the LED lifetime and efficiency. In this study, the thermal conductivities of grease mixed with four different nanoparticles – MWCNT (multi-walled carbon nanotube), silver, copper (II) oxide, and aluminum oxide (Al2O3) are measured by using a solid thermal conductivity measurement system. It is found that the measured thermal conductivities of the grease with MWCNT, silver, copper (II) oxide, and aluminum oxide enhance up to 82.8, 26, 58.8 and 40% at 1.0 wt%, respectively, compared with that of the pure grease. Results confirm that the MWCNT grease is the best candidate out of the four different nanoparticles-based greases for the LED package cooling performance.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
