Highly luminescent Ca3Sc2Si3O12:Ce3+ silicate garnet nano- and microparticles with 50-70% photoluminescence quantum yields as efficient phosphor converters for white LEDs

Conference contribution
(Conference Contribution)


Publication Details

Author(s): Levchuk I, Schröppel F, Römling L, Chepyga L, Osvet A, Khaidukov N, Zorenko Y, Van Deun R, Brabec C, Batentschuk M
Editor(s): TechConnect
Publisher: TechConnect
Publication year: 2017
Volume: 4
Conference Proceedings Title: Advanced Materials - TechConnect Briefs 2017
Pages range: 194-197
ISBN: 9780998878218
Language: English


Abstract


We present a novel synthesis method of Ca3Sc2Si3O12:Ce3+ nano- and microparticles with outstandingly bright photoluminescence. Nanoparticles were synthesized by the co-precipitation method, where a long-chain fatty acid salt was used as the precipitation agent for Ca, Sc and Ce water solutions in combination with SiO2 nanoparticles or TEOS as a silica source. Further calcination in reducing atmosphere results in brightly luminescent Ca3Sc2Si3O12:Ce3+ nanopowders with up to 50% photoluminescence quantum yield (PLQY). The modified conventional solid-state reaction was utilized for synthesizing microparticles. Pre-synthesis of metal and silicon oxide solid blends with subsequent high-temperature post-treatment enables to obtain Ca3Sc2Si3O12:Ce3+ microparticles with the record-high PLQY of about 70%. Additionally, both kinds of samples display significantly higher thermal stability of photoluminescence in comparison to a commercial YAG:Ce phosphor.



FAU Authors / FAU Editors

Batentschuk, Miroslaw PD Dr.-Ing.
Institute Materials for Electronics and Energy Technology (i-MEET)
Brabec, Christoph Prof. Dr.
Institute Materials for Electronics and Energy Technology (i-MEET)
Chepyga, Liudmyla
Institute Materials for Electronics and Energy Technology (i-MEET)
Levchuk, Ievgen
Institute Materials for Electronics and Energy Technology (i-MEET)
Osvet, Andres Dr.
Institute Materials for Electronics and Energy Technology (i-MEET)


External institutions
Kazimierz Wielki University in Bydgoszcz / Uniwersytet Kazimierza Wielkiego w Bydgoszcz (UKW)
Kurnakov Institute of General and Inorganic Chemistry (IGIC RAS) / Институт общей и неорганической химии им. Н.С. Курнакова
Universiteit Gent (UGent) / Ghent University


How to cite

APA:
Levchuk, I., Schröppel, F., Römling, L., Chepyga, L., Osvet, A., Khaidukov, N.,... Batentschuk, M. (2017). Highly luminescent Ca3Sc2Si3O12:Ce3+ silicate garnet nano- and microparticles with 50-70% photoluminescence quantum yields as efficient phosphor converters for white LEDs. In TechConnect (Eds.), Advanced Materials - TechConnect Briefs 2017 (pp. 194-197). Washington, US: TechConnect.

MLA:
Levchuk, Ievgen, et al. "Highly luminescent Ca3Sc2Si3O12:Ce3+ silicate garnet nano- and microparticles with 50-70% photoluminescence quantum yields as efficient phosphor converters for white LEDs." Proceedings of the 11th Annual TechConnect World Innovation Conference and Expo, Held Jointly with the 20th Annual Nanotech Conference and Expo, and the 2017 National SBIR/STTR Conference, Washington Ed. TechConnect, TechConnect, 2017. 194-197.

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Last updated on 2018-29-10 at 11:09