Open AccessAn Emerging White LED Technology and associated Thermal Issues – A Review
Publication year - 2019
Publication title -
journal of applied and emerging sciences
Language(s) - English
Resource type - Journals
eISSN - 2415-2633
pISSN - 1814-070X
DOI - 10.36785/buitems.jaes.301
Subject(s) - light emitting diode , gamut , luminous efficacy , heat sink , led lamp , color temperature , color rendering index , phosphor , rgb color model , white light , efficient energy use , optoelectronics , materials science , computer science , diode , engineering , electrical engineering , artificial intelligence , nanotechnology , layer (electronics)
White light emitting diodes (white-LEDs) are the promising light sources of new lighting technology due to their high efficiency, energy saving, long life and environmentally friendly. In this review, different techniques proposed for the development of white-LEDs have been discussed in terms of their performance efficiency and potential usage. The Phosphor based white-LEDs are widely used LEDs, as compared to RGB based white-LEDs, due to their luminous efficacy, service life, display color gamut and the color rendering. Furthermore, thermal issues related to high power white-LEDs have been discussed as it greatly impacts the performance efficiency. To resolve thermal issues, heat sinks having high thermal conductivity are most widely used among others.