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8477802 
Journal Article 
Color-conversion and photoluminescence properties of Ba2MgW(Mo)O-6:Eu phosphor 
Li, H; Yang, HK; Moon, BKee; Choi, BC; Jeong, JH; Jang, K; Lee, HoS; Yi, SSoo; , 
2011 
Yes 
Journal of Alloys and Compounds
ISSN: 0925-8388 
ELSEVIER SCIENCE SA 
LAUSANNE 
8788-8793 
WOS:000293824600032 
Compounds B(2)AXO(6):Eu (B = Ba, Sr; A = Ca; and X = W, Mo) have recently been investigated and suggested to be color-conversion phosphor for WLED devices. In this work, we investigated the photoluminescence properties of the analogues Ba2MgXO6:Eu (X = W and Mo) and the energy transfer from W(Mo)O-6 groups to Eu3+ ions within the phosphors. The phase structure, UV-vis diffuse reflectance spectrum, photoluminescence properties and decay of Ba2MgW(1-x)MoxO6:Eu were studied as a function of the W/Mo ratio. It was found that these phosphors showed excellent color-conversion capability from near-UV to orange-red light. The color-conversion process was considered to be performed by energy transferring from MoO6 groups to doped Eu3+ ions. The MoO6 > Eu3+ energy transfer efficiency could be greatly enhanced by partial substitution of Mo by W. The structure and photoluminescence properties of Ba(2)AW(0.5)Mo(0.5)O(6):Eu (A = Ca and Mg, respectively) compounds were also investigated to reveal the effect of the Eu3+ ion coordination environment on its photoluminescence properties. (c) 2011 Elsevier B.V. All rights reserved.