Synthesis and two-color emission properties of BaGd₂(MoO₄)₄:Eu³⁺,Er³⁺,Yb³⁺ phosphors

详细信息    查看全文

• 作者：Jiayue Sun ; ^{jiayue_sun@126.com} ; Wei Zhang ; Weihang Zhang ; Haiyan Du
• 关键词：A. Optical materials ; C. X-ray diffraction ; D. Optical properties
• 刊名：Materials Research Bulletin
• 出版年：2012
• 出版时间：March, 2012
• 年：2012
• 卷：47
• 期：3
• 页码：786-789
• 全文大小：495 K

文摘

Eu³⁺, Er³⁺ and Yb³⁺ co-doped BaGd₂(MoO₄)₄ two-color emission phosphor was synthesized by the high temperature solid-state method. The structure of the sample was characterized by XRD, and its luminescence properties were investigated in detail. Under the excitation of 395 nm ultraviolet light, the BaGd₂(MoO₄)₄:Eu³⁺,Er³⁺,Yb³⁺ phosphor emitted an intense red light at 595 and 614 nm, which can be attributed to ⁵D₀ ?#xA0;⁷F₁ and ⁵D₀ ?#xA0;⁷F₂ transitions of Eu³⁺, respectively. The phosphor will also show bright green light under 980 nm infrared light excitation. The green emission peaks centred at 529 and 552 nm, were attributed to ⁴H_11/2 ?#xA0;⁴I_15/2 and ⁴S_3/2 ?#xA0;⁴I_15/2 transitions of Er³⁺, respectively. It indicated that the two-color emission can be achieved from the same BaGd₂(MoO₄)₄:Eu³⁺,Er³⁺,Yb³⁺ host system based on the different pumping source, 395 nm UV light and 980 nm infrared light, respectively. The obtained results showed that this kind of phosphor may be potential in the field of multi-color fluorescence imaging and anti-counterfeiting.