Cr3+-Yb3+-Ni2+ Tri-Doped NIR Phosphors with Spectral Output Covering NIR-I and NIR-II Regions

被引：14

作者：

Jiang, Lipeng ^{[1
]}

Zhang, Liangliang ^{[2
]}

Jiang, Xue ^{[3
]}

Xie, Jihuan ^{[4
]}

Lv, Guocai ^{[5
]}

Su, Yanjing ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Beijing Adv Innovat Ctr Mat Genome Engn, Corros & Protect Ctr, Beijing 100083, Peoples R China

[2] Chinese Acad Sci, State Key Lab Luminescence & Applicat, Changchun Inst Opt Fine Mech & Phys, Changchun 130033, Peoples R China

[3] Univ Sci & Technol Beijing, Collaborat Innovat Ctr Steel Technol, Beijing 100083, Peoples R China

[4] Univ Sci & Technol Beijing, Sch Met & Ecol Engn, Beijing Key Lab Green Recovery & Extract Rare & Pr, Beijing 100083, Peoples R China

[5] Univ Sci & Technol Beijing, Basic Expt Ctr Nat Sci, Beijing 100083, Peoples R China

来源：

ADVANCED MATERIALS TECHNOLOGIES | 2024年 / 9卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Cr3+ energy transfer; near-infrared; phosphor-converted LED; INFRARED LUMINESCENCE;

D O I：

10.1002/admt.202301495

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

To realize efficient and broadband near infrared (NIR) light in both NIR-I and NIR-II regions, Gd3Mg0.5Al1.5Ga2.5Ge0.5O12 (GMAGG): Cr3+, Yb3+, Ni2+ phosphors are prepared in this study. The effects of Cr3+-Yb3+ co-doping and Cr3+-Yb3+-Ni2+ tri-doping on the luminescence properties are investigated. GMAGG: Cr3+, Yb3+ exhibits high internal quantum efficiency (IQE) of 96.4%, and near-zero thermal quenching (96.5%@423 K) in 650-1100 nm. By constructing energy transfer from Cr3+ to Ni2+, the emission range of GMAGG: Cr3+, Yb3+, Ni2+ is further extended to 650-1700 nm with a high IQE of 28% and good thermal stability (66%@423 K). The NIR LEDs prepared with GMAGG: 0.04Cr(3+), 0.008Yb(3+), and GMAGG: 0.04Cr(3+), 0.008Yb(3+), 0.04Ni(2+) exhibit 57.5 and 8.1 mW at an input current of 100 mA, respectively. The results show that GMAGG: Cr3+, Yb3+, Ni2+ is a promising NIR phosphor for NIR light sources.

引用

页数：7

共 53 条

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