Ionic Liquid-Assisted Route to Nanocrystalline Single-Phase Phosphors for White Light-Emitting Diodes

TitleIonic Liquid-Assisted Route to Nanocrystalline Single-Phase Phosphors for White Light-Emitting Diodes
Publication TypeJournal Article
Year of Publication2013
AuthorsLorbeer C, Mudring AV
Journal TitleChemsuschem
Volume6
Pages2382-2387
Date Published12
Type of ArticleArticle
ISBN Number1864-5631
Accession NumberWOS:000328218400026
Keywordsbehavior, CONVERSION, emitter, fluorides, ionic liquids, leds, light-emitting diodes, luminescence, nanoparticles, size, temperature, white
Abstract

White light-emitting diodes represent the future generation of domestic and public lighting, substituting the currently favored (compact) fluorescent lamps. Research on improving the performance and costs leads to a focus on processing constraints. The optimization of the grain size is judged to be an important tool for minimizing the necessary amount of (expensive rare-earth containing) phosphors. Using only one type of phosphor that emits white light instead of a mixture of three phosphors (one for blue, green, and red, respectively) will significantly improve the characteristics of future light-emitting diodes. Small, 6-8nm-sized particles emit intense white light observable by the naked eye. The emission color has been studied by varying the dopant ion concentrations as well as the excitation wavelengths, yielding white light close to standard daylight.

URL<Go to ISI>://WOS:000328218400026
DOI10.1002/cssc.201200915