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

Levchuk I, Schröppel F, Römling L, Chepyga L, Osvet A, Khaidukov N, Zorenko Y, Van Deun R, Brabec C, Batentschuk M (2017)

Publication Language: English

Publication Status: Published

Publication Type: Conference contribution, Conference Contribution

Publication year: 2017

Publisher: TechConnect

Book Volume: 4

Pages Range: 194-197

Conference Proceedings Title: Advanced Materials - TechConnect Briefs 2017

Event location: Washington

ISBN: 9780998878218

URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85029309619&origin=inward

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.

Authors with CRIS profile

Involved external institutions

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

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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