Luminescent property of a novel red emitting phosphor Ca4Y6O(SiO4)(6):EU3+

作者：Wang Zhijun^*; Li Panlai; Yang Zhiping; Guo Qinglin

来源：Materials Letters, 2014, 126: 89-91.

DOI：10.1016/j.matlet.2014.04.004

• Luminescence
• Phosphors

A novel red emitting phosphor Ca4Y6O(SiO4)(6):EU3+ is synthesized by a solid state method, and its luminescent properties are investigated. Ca4Y6O(SiO4)(6):EU3+ presents several emission peaks, which are assigned to the D-5(0)-F-7(j) (j=0-4) transitions of Eu3+, and the dominating emission locates at 615 nm. The excitation spectrum has a broad excitation band and several narrow emission peaks. With an appropriate Eu3+ doping content, the emission intensity of Ca4Y6O(SiO4)(6):EU3+ is stronger than that of Y2O2S:Eu3+. The concentration quenching of Eu3+ in Ca4Y6O(SiO4)(6) is observed, and the mechanism of concentration quenching is the dipole-dipole interaction. The CIE coordinates of Ca4Y6O(SiO4)(6):EU3+ locate in the red region, and are about (0.636, 0.338).

• 出版日期2014-7-1
• 单位河北大学