Micro-powder Ca3Sc2Si3O12:Ce silicate garnets as efficient light converters for WLEDs
Levchuk I, Osvet A, Brabec C, Batentschuk M, Shakhno A, Zorenko T, Zorenko Y (2020)
Publication Type: Journal article
Publication year: 2020
Journal
Book Volume: 107
Article Number: 109978
DOI: 10.1016/j.optmat.2020.109978
Abstract
A novel synthesis method of Ca3Sc2Si3O12:Ce micropowder with very bright photo-luminescence (PL) has been developed. The conventional solid-state reaction has been modified for Ca3Sc2Si3O12:Ce microparticle crystallization. Pre-synthesis of metal and silicon oxide blends with subsequent high-temperature treatment in reducing (H2/N2) atmosphere enables obtaining Ca3Sc2Si3O12:Ce micropowder with a high PL quantum yield of about 60–70% at Ce3+ content in the 2.5–5 at.% range, which is highly attractive for LED technology. Additionally, the Ca3Sc2Si3O12:Ce phosphors with Ce concentration in the 0.5–2.5% range display higher thermal stability of photoluminescence in comparison with a commercial YAG:Ce phosphor.
Authors with CRIS profile
Ievgen Levchuk
Institute Materials for Electronics and Energy Technology (i-MEET) (i-MEET)
Andres Osvet
Institute Materials for Electronics and Energy Technology (i-MEET) (i-MEET)
Christoph Brabec
Institute Materials for Electronics and Energy Technology (i-MEET) (i-MEET)
Miroslaw Batentschuk
Institute Materials for Electronics and Energy Technology (i-MEET) (i-MEET)
Involved external institutions
Poland (PL)How to cite
APA:
Levchuk, I., Osvet, A., Brabec, C., Batentschuk, M., Shakhno, A., Zorenko, T., & Zorenko, Y. (2020). Micro-powder Ca3Sc2Si3O12:Ce silicate garnets as efficient light converters for WLEDs. Optical Materials, 107. https://doi.org/10.1016/j.optmat.2020.109978
MLA:
Levchuk, Ievgen, et al. "Micro-powder Ca3Sc2Si3O12:Ce silicate garnets as efficient light converters for WLEDs." Optical Materials 107 (2020).
BibTeX: Download