Broadband NIR emission from transparent fluorosilicate glass-ceramics containing Rb2SiF6:Ni2+ nanocrystals

被引：6

作者：

Mao, Qiannan ^{[1
,2
]}

Chen, Jiejie ^{[1
,2
]}

Lan, Bijiao ^{[1
,2
]}

Lv, Shichao ^{[1
,2
]}

Fan, Zhechen ^{[1
,2
]}

Wu, Jinhao ^{[1
,2
]}

Zhou, Shifeng ^{[1
,2
]}

机构：

[1] South China Univ Technol, Sch Mat Sci & Engn, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Guangdong, Peoples R China

[2] Guangdong Engn Technol Res & Dev Ctr Special Opt, Guangdong Prov Key Lab Fiber Laser Mat & Appl Tec, Guangzhou 510640, Guangdong, Peoples R China

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2019年 / 518卷

基金：

国家重点研发计划;

关键词：

Fluorosilicate; Optical materials; Glass-ceramics; Luminescence; INFRARED LUMINESCENCE; SYSTEMS; NICKEL; CRYSTALLIZATION; ENVIRONMENT; EVOLUTION; MAGNESIUM; DOPANT; PHASE; NI2+;

D O I：

10.1016/j.jnoncrysol.2019.05.019

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Ni2+-doped fluorosilicate glass-ceramics with broadband emission have been prepared. The structural characterizations show that Rb2SiF6 nanocrystals separated from the glassy phase in the sample with a composition of RbF-ZnF2-SiO2:Ni2+. Moreover, the obtained Rb2SiF6 nanocrystals with the size of around 30 nm rely on stringent control of the heat-treatment temperatures. The experimental data reveal that Ni2+ selectively incorporates into the cubic Rb2SiF6 nanocrystals and locates at a typical 6F-coordinated octahedra. Meanwhile, a broadband emission in the important NIR range from 1200 to 2000 nm appears with the precipitation of Rb2SiF6 nanocrystals. The emission can be ascribed to the T-3(2g)(F-3) -> (3)A(2g)(F-3) transition of octahedral Ni2+ incorporated in the Rb2SiF6 crystalline phase. The Rb2SiF6:Ni2+ containing glass-ceramics provide an innovative choice for the development of photonic glasses with broadband emission.

引用

页码：66 / 69

页数：4

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