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Sm共掺对Sr4Al14O25:M (M=Mn4+, Cr3+)荧光粉发光性能的影响
许育东*,彭旭东,王雷*,石敏,张原,汪泉,齐三,丁宁
作者单位E-mail
许育东* 合肥工业大学材料科学与工程学院合肥230009 drxuyudong@126.com 
彭旭东 合肥工业大学材料科学与工程学院合肥230009  
王雷* 合肥工业大学材料科学与工程学院合肥230009 leiw03@126.com 
石敏 合肥工业大学材料科学与工程学院合肥230009  
张原 合肥工业大学材料科学与工程学院合肥230009  
汪泉 合肥工业大学材料科学与工程学院合肥230009  
齐三 合肥工业大学材料科学与工程学院合肥230009  
丁宁 蚌埠钰诚新材料科技股份有限公司蚌埠 233000  
摘要:
用固相反应法合成了Sr4Al14O25:M和Sr4Al14O25:(M+Sm3+)(M=Mn4+, Cr3+)荧光粉, 研究了其发光性能.Sm的共掺并没有改变Sr4Al14O25:Cr3+激发带和发射带的位置, 但是显著提高了材料的发光性能;Sm共掺Sr4Al14O25:Mn4+反而降低了发光强度. 对于Cr3+, Sm3+共掺的Sr4Al14O25荧光粉, 呈现了从Sm3+到Cr3+ 的辐射形式的能量传递过程,说明了Sm的共掺对于Sr4Al14O25:Cr3+荧光粉的发光强度提高的原因.
关键词:  荧光粉,共掺,铝酸锶,能量传递
DOI:10.1063/1674-0068/28/cjcp1504071
分类号:
基金项目:
Effects of Sm Co-doping on Luminescent Properties of Sr4Al14O25:M (M=Mn4+, Cr3+) Phosphors
Yu-dong Xu*,Xu-dong Peng,Lei Wang*,Min Shi,Yuan Zhang,Quan Wang,San Qi,Ning Ding
Abstract:
The Sr4Al14O25:M and doped Sr4Al14O25:M+Sm3+ (M=Mn4+, Cr3+) phosphors were syn-thesized by a solid-state reaction method and their luminescent properties were investi-gated. The results showed that the co-doping of Sm ions did not change the positions of excitation band and emission band but signi cantly improved the luminescent properties of Sr4Al14O25:Cr3+ phosphors; whereas, the emission intensity of Sr4Al14O25:Mn4+ was re-dueced remarkably when Sm ions were co-doped. In addtion, a radiative-form energy transfer from Sm3+ to Cr3+ was observed for the first time in the Cr, Sm co-doped Sr4Al14O25 phos-phors. The results indicated that Sm ions could signi cantly improve the emission intensity of Sr4Al14O25:Cr3+, making the Sm3+co-doped Sr4Al14O25:Cr3+ phosphor a promising can-didate for the applications in display and solid state lightening.
Key words:  Phosphor, Co-doping, Strontium aluminates, Energy transfer