Photoluminescence Properties of A2SnO4(A=Ca, Sr, Ba):Eu Nanocrystalline
FU Xiao-yan1, NIU Shu-yun1*, ZHANG Hong-wu2, MIN Qing-wang1, XIN Qin2
1. College of Chemistry and Chemical Engineering of Liaoning Normal University, Dalian 116029, China 2. Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dailan 116023, China
Abstract:Nanosized A2SnO4(A=Ca,Sr,Ba):1%Eu with diameters ranging from 50 to 100 nm were synthesized by complex sol-gel methods. The structures and spectral properties of A2SnO4(A=Ca,Sr,Ba):Eu were studied by using X-ray powder diffraction (XRD) and luminescence spectra. The experimental results show that Ca2SnO4:1%Eu exhibits bright red emission at about 615 nm under UV excitation, which makes it a possible good candidate for FED application. However Sr2SnO4:1%Eu and Ba2SnO4:1%Eu exhibit orange emission at about 590 nm because in these hosts Eu3+ ions occupy the symmetric sites.
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