Luminescence of Ce3+ in some compounds in the system CaO-SiO2-CaCl2

被引：2

作者：

Sharma, Khushbu ^{[1
]}

Talwar, Gurjeet ^{[2
]}

Moharil, S. V. ^{[3
]}

Ghormare, K. B. ^{[4
]}

机构：

[1] GH Raisoni Inst Engn & Tech, Nagpur 440028, Maharashtra, India

[2] Hislop Coll, Nagpur 440001, Maharashtra, India

[3] Nagpur Univ, Dept Phys, Nagpur 440033, Maharashtra, India

[4] VMV Commerce JMT Arts & JJP Sci Coll, Nagpur, Maharashtra, India

来源：

JOURNAL OF LUMINESCENCE | 2017年 / 188卷

关键词：

Photoluminescence; Lifetime; chlorosilicate; Ce3+; LIGHT-EMITTING-DIODES; SOL-GEL METHOD; PHOTOLUMINESCENCE PROPERTIES; CHLOROSILICATE PHOSPHOR; INORGANIC-COMPOUNDS; CRYSTAL-STRUCTURE; WHITE LEDS; EU2+; CA10SI6O21CL2; CA2SIO3CL2;

D O I：

10.1016/j.jlumin.2017.04.027

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Photoluminescence of Ce3+ activated chlorosilicates of calcium, viz. Ca2SiO3Cl2, Ca3SiO4Cl2, Ca-7(SiO4)(2)Cl-6, Calo(Si2O7)(3)Cl-2 prepared by solid state reactions is reported for the first time. All four phosphors exhibit emission in the near ultraviolet region. It is a bit unusual in that the characteristic doublet feature is not observed in the emission spectrum. Excitation spectra did not show full fivefold splitting of D states despite low symmetry. Lifetime measurements have also been carried out. Lifetimes in the range 30-37 ns are typical of silicate environment.

引用

页码：168 / 171

页数：4

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