Luminescence property of ZnAl2O4:Cr3+ phosphors co-doped by different cations

作者：Ma, Junfeng^*; Qi, Guining; Chen, Yulin; Liu, Shiyuan; Cao, Shanqiao; Wang, Xun

来源：Ceramics International, 2018, 44(10): 11898-11900.

DOI：10.1016/j.ceramint.2018.03.159

• Powders: solid state reaction
• X-ray methods
• Spinels
• Luminescence

ZnAl2O4:Cr3+ phosphors co-doped with different valence cations were successfully prepared at 1400 degrees C by a solid-state reaction, and their phase compositions and luminescence property were studied respectively by X-ray diffraction (XRD), photoluminescence spectra, and decay curves. The results showed that alkaline metal or alkaline earth cations with a lower valence can improve both fluorescence and phosphorescence properties by adjusting the substructure around Cr3+ and changing its local crystal field symmetry, whereas B3+ and Si4+ ions with higher valences can affect the framework of aluminates, their afterglow performance depends on cation species though both of their fluorescence can be slightly improved.

• 出版日期2018-7
• 单位华北电力大学