Sunlike White Light-Emitting Diodes Based on Rare-Earth-Free Luminescent Materials.

ABSTRACT: Solid-state lighting (SSL) sources based on light-emitting diodes represent the new generation of highly efficient illumination systems that significantly impact energy-saving. The development of white light-emitting diodes (WLEDs) with a combination of high color rendering index (CRI) and high deep-red color rendering R9 is an important challenge in the field of solid-state lighting. On the other hand, most WLEDs use rare-earth inorganic luminescent materials. The annual demand for rare-earth metals has doubled to 125,000 tons in 15 years, and the demand is projected to reach 315,000 tons in 2030. The explosion in demand for these materials, combined with a monopolistic supply source, represents a real risk for the development of WLEDs in the next few years. Luminescent organic materials

SUBMITTER: Menendez-Velazquez A 

PROVIDER: S-EPMC8911033 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature