Microwave‐assisted sintering synthesis of greenish‐yellow emitting Sr2SiO4:Eu2+ phosphors |
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| Authors: | Woo Cheol Lee Jin Young Park Hyun Kyoung Yang Minseok Kwak Byung Kee Moon Ki‐Wan Jang |
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| Affiliation: | 1. Department of LED Convergence Engineering, Pukyong National University, Busan, Republic of Korea;2. Department of Chemistry, Pukyong National University, Busan, Republic of Korea;3. Department of Physics, Pukyong National University, Busan, Republic of Korea;4. Department of Physics, Changwon National University, Changwon, Republic of Korea |
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| Abstract: | Europium ion (Eu2+) doped Sr2SiO4 phosphors with greenish‐yellow emission were synthesized using microwave‐assisted sintering. The phase structure and photoluminescence (PL) properties of the obtained phosphor samples were investigated. The PL excitation spectra of the Sr2SiO4:Eu2+ phosphors exhibited a broad band in the range of 260 nm to 485 nm with a maximum at 361 nm attributed to the 5f‐4d allowed transition of the Eu2+ ions. Under an excitation at 361 nm, the Sr2SiO4:Eu2+ phosphor exhibited a greenish‐yellow emission peak at 541 nm with an International‐Commission‐on‐Illumination (CIE) chromaticity of (0.3064, 0.4772). The results suggest that the microwave‐assisted sintering method is promising for the synthesis of phosphors owing to the decreased sintering time without the use of additional reductive agents. |
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| Keywords: | microwave‐assisted sintering phosphor Sr2SiO4:Eu2+ |
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