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8479633 
Journal Article 
Vibronic coupling parameters and luminescent properties of Eu2+ doped complex alkaline earth thioaluminates 
Zhang Dong-pu; Xue Wei; Yu Zhi-nong; Zhang Ting; Leng Jian; Kong Xiang-jun; , 
2010 
SPIE-INT SOC OPTICAL ENGINEERING 
BELLINGHAM 
785210 
WOS:000287707000024 
The luminescent properties of different M(x)(II)Mx(1-x)II Al2S4:Eu and (MAl2S4)-Al-II:Eu are researched in this paper. A novel assessment method is used to evaluate these materials base on the configuration coordinates model. Vibronic coupling parameters of these phosphor materials can be calculated by the formula. With the calculation of characteristic energy and unitless factors, performances of (MxM1-xAl2S4)-M-II-Al-II:Eu and (MAl2S4)-Al-II:Eu are evaluated. We then concluded that BaAl2S4: Eu shows highest F value comparing with other single or complex thioaluminates. With increasing amounts of Ba and Ca ions in the BaxMg1-xAl2S4: Eu and Ca(1-y)SryAl(2)S(4):Eu respectively, the complex thioaluminates gives better luminescent performance and a broad tunable emission color can be achieved. 
Yu, G; Hou, Y; 
Conference on LED and Display Technologies 
Beijing, PEOPLES R CHINA