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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
Author NameAffiliationE-mail
Yu-dong Xu* School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China drxuyudong@126.com 
Xu-dong Peng School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China  
Lei Wang* School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China leiw03@126.com 
Min Shi School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China  
Yuan Zhang School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China  
Quan Wang School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China  
San Qi School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China  
Ning Ding Bengbu Yucheng New Materials Science and Technology Ltd. Co., Bengbu 233000, China  
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
FundProject:
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
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: