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

Beitrag bei einer Tagung
(Konferenzbeitrag)


Details zur Publikation

Autor(en): Levchuk I, Schröppel F, Römling L, Chepyga L, Osvet A, Khaidukov N, Zorenko Y, Van Deun R, Brabec C, Batentschuk M
Herausgeber: TechConnect
Verlag: TechConnect
Jahr der Veröffentlichung: 2017
Band: 4
Tagungsband: Advanced Materials - TechConnect Briefs 2017
Seitenbereich: 194-197
ISBN: 9780998878218
Sprache: Englisch


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-Autoren / FAU-Herausgeber

Batentschuk, Miroslaw PD Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Materialien der Elektronik und der Energietechnologie)
Brabec, Christoph Prof. Dr.
Lehrstuhl für Werkstoffwissenschaften (Materialien der Elektronik und der Energietechnologie)
Chepyga, Liudmyla
Lehrstuhl für Werkstoffwissenschaften (Materialien der Elektronik und der Energietechnologie)
Levchuk, Ievgen
Lehrstuhl für Werkstoffwissenschaften (Materialien der Elektronik und der Energietechnologie)
Osvet, Andres Dr.
Lehrstuhl für Werkstoffwissenschaften (Materialien der Elektronik und der Energietechnologie)


Autor(en) der externen Einrichtung(en)
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


Zitierweisen

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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Zuletzt aktualisiert 2018-29-10 um 11:09