Color-tunable luminescence and energy transfer behaviors of Dy³⁺/Eu³⁺ co-doped SrLaMgTaO₆ phosphors for solid state lighting applications

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• 作者：Yue Guo^a ; Byung Kee Moon^a ; Byung Chun Choi^a ; Jung Hyun Jeong^a ; ^{jhjeong@pknu.ac.kr} ; Jung Hwan Kim^b
• 关键词：Rare-earth ; Energy transfer ; TaO6 group ; Phosphors
• 刊名：Materials Research Bulletin
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：88
• 期：Complete
• 页码：166-173
• 全文大小：2731 K
• 卷排序：88

文摘

Excited by 354 nm, the samples showed TaO6 group, Dy3+ and Eu3+ ions emission. The band gap was calculated by VASP and diffuse reflectance spectra. The ET mechanism from Dy3+ to Eu3+ ions are the exchange interaction. The integral intensity kept about 83.34% at 150 °C of that measured at 30 °C. The warm and cold white light emission could be generated.