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Salt-assisted combustion synthesis of Ca-alpha-SiAlON:Eu2+ phosphors
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| Title: | Salt-assisted combustion synthesis of Ca-alpha-SiAlON:Eu2+ phosphors |
| Authors: | Saito, Genki Browse this author →KAKEN DB | | Niu, Jing Browse this author | | Yi, Xuemei Browse this author | | Kunisada, Yuji Browse this author | | Sakaguchi, Norihito Browse this author →KAKEN DB | | Akiyama, Tomohiro Browse this author →KAKEN DB |
| Keywords: | Phosphor | | Oxynitride | | SiAlON |
| Issue Date: | 5-Oct-2016 |
| Publisher: | Elsevier |
| Journal Title: | Journal of alloys and compounds |
| Volume: | 681 |
| Start Page: | 22 |
| End Page: | 27 |
| Publisher DOI: | 10.1016/j.jallcom.2016.04.211 |
| Abstract: | In this study, Ca-alpha-SiAlON:Eu2+ yellow phosphors for white light-emitting diodes (LEDs) were synthesized via a facile combustion synthesis method by using CaO, Eu2O3, Si, and Al as raw materials, while NaCl and Si3N4 were utilized as diluents to contain the combustion temperature. The concentration of Eu was varied, and the resulting changes in phase purity, photoluminescence properties, and thermal quenching were investigated. We observed that the increase in lattice constant depended on the amount of Al, while the Ca sites were partially substituted by Eu ions. The synthesized Ca-alpha-SiAlON: Eu2+ powders exhibited emission wavelength at 556-560 nm and high thermal stability, revealing high potential for application in white LEDs. |
| Rights: | © 2016, Elsevier. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | | http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/71626 |
| Appears in Collections: | エネルギー・マテリアル融合領域研究センター (Center for Advanced Research of Energy and Material) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 齊藤 元貴
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