Objective The introduction of high brightness light emitting diodes (LEDs) with white light and monochromatic colors has allowed LED penetration into general illumination applications. The increased electrical currents used to drive these LEDs have resulted in high heat fluxes, often exceeding those for average silicon computer chips. The output of a typical HB LED is today over 100 lumens, achieved with heat fluxes in excess of 300 W/cm2. Thermal management is, thus, a critical technology for LED lighting. Much of the current LED thermal research and development is focusing on air cooling with heat sinks. While these approaches provide significant heat removal capability, they are constrained by the presence of multiple interface resistances and they cannot effectively address non-uniform chip temperatures and local phosphor hot spots. To overcome the limitations imposed by air cooling, this research will investigate the potential of direct liquid cooling to provide an additional thermal path for heat dissipated in the LEDs and phosphor layers. The introduction of topside liquid cooling with optically-transparent liquids is expected to dramatically reduce average chip temperatures and to improve the uniformity of chip and phosphor temperature, leading to higher light extraction efficiencies. Fields of science engineering and technologymaterials engineeringcolorsnatural scienceschemical sciencesinorganic chemistrymetalloids Programme(s) FP7-PEOPLE - Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) Topic(s) FP7-PEOPLE-2011-CIG - Marie-Curie Action: "Career Integration Grants" Call for proposal FP7-PEOPLE-2011-CIG See other projects for this call Funding Scheme MC-CIG - Support for training and career development of researcher (CIG) Coordinator OZYEGIN UNIVERSITESI Address Nisantepe mah orman sok 34 36 34794 Alemdag cekmekoy, istanbul Türkiye See on map Region İstanbul İstanbul İstanbul Administrative Contact Nilay Papila (Dr.) Links Contact the organisation Opens in new window Website Opens in new window EU contribution No data
