Green light-excitable Ce-doped nitridomagnesoaluminate Sr[Mg2Al2N4] phosphor for white light-emitting diodes
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A Ce3+-doped nitrodoagnesoaluminate Sr[Mg2Al2N4] phosphor was prepared from all-nitride precur- sors using gas pressure sintering method. The effective excitation by green light (510 nm) that revealed a broad emission from 550-650 nm prompted an innovation in the assembly of the pc-LED by using a blue chip LED that is sequentially coated with a green-emitting phosphor (β-SiAlON:Eu2+) that excites the upper Sr[Mg2Al2N4]:Ce3+ layer thereby producing white light. The use of this broadband emitting phosphor and the innovative configuration generates white light and puts forward two promising innovations for pc-LEDs.
Leaño, Jr. , J , Lin , S-Y , Lazarowska , A , Mahlik , S , Grinberg , M , Liang , C , Zhou , W , Molokeev , M , Atuchin , V , Tsai , Y-T , Lin , C C , Sheu , H-S & Liu , R-S 2016 , ' Green light-excitable Ce-doped nitridomagnesoaluminate Sr[Mg 2 Al 2 N 4 ] phosphor for white light-emitting diodes ' , Chemistry of Materials , vol. 28 , no. 19 , pp. 6822–6825 . https://doi.org/10.1021/acs.chemmater.6b03442
Chemistry of Materials
Copyright © 2016 American Chemical Society. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at: https://doi.org/10.1021/acs.chemmater.6b03442
DescriptionThis work was supported by the Ministry of Science and Tech- nology of Taiwan (Contract Nos. MOST 104-2113-M-002-012- MY3, MOST 104-2119-M-002-027-MY3, MOST 104-2923-M- 002-007-MY3); the National Center for Research and Development Poland Grant (No. SL-TW2/8/2015). The contribution of S. M. was supported by the grant "Iuventus Plus" 0271/IP3/2015/73 from Ministry of Science and Higher Education, Poland, and the Russian Foundation for Basic Re- search (15-52-53080). The authors would also like to acknowledge the financial support from the Epistar Company.
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