Dual-mode multicolor luminescence anti-counterfeiting based on Mn-doped color-tunable MgGa2O4:Zn2+/Ge4+phosphors

被引：2

作者：

Xu, Yamin ^{[1
]}

Huang, Weichao ^{[1
]}

Deng, Chaoyong ^{[1
]}

Hou, Qing ^{[2
]}

机构：

[1] Guizhou Univ, Coll Big Data & Informat Engn, Key Lab Funct Composite Mat Guizhou Prov, Guiyang 550025, Guizhou, Peoples R China

[2] Guizhou Commun Ind Serv Co Ltd, Guiyang, Peoples R China

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2023年 / 317卷

基金：

中国国家自然科学基金;

关键词：

Luminescence anti-counterfeiting; Mn2+; Mn4+; RED; PHOSPHOR; INFORMATION; REDUCTION; EMISSION; ZNGA2O4; AL;

D O I：

10.1016/j.jssc.2022.123695

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

In this paper, a series of MgGa2-x(Zn/Ge)xO4:0.001Mn (x = 0, 0.05, 0.15, 0.3, 0.5, 1 and 1.2) phosphors were successfully synthesized using high temperature solid-state reaction. Under excitation at 377 nm, the sample has two emission peaks at 501 nm and 673 nm, respectively. In this material, Mn2+ and Mn4+ ions replace tetrahedral site (Mg site) and octahedral site (Ga site), respectively. The green emission at 501 nm belongs to the 4T1(G)-> 6A1(S) transition of Mn2+, and the red emission of 673 nm belongs to the 2E -> 4A2 transition of Mn4+.

引用

页数：7

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