Fe3+-activated BaZrO3 with broadband NIR-II phosphor for large-area Illumination, non-visual and biomedical imaging

被引：0

作者：

Zhang, Yuexi ^{[1
]}

Zhu, Fengmei ^{[1
,2
]}

Song, Hao ^{[3
]}

Gao, Yuan ^{[1
,4
]}

Qiu, Jianbei ^{[1
,2
,4
]}

机构：

[1] Kunming Univ Sci & Technol, Fac Mat Sci & Engn, Kunming 650093, Peoples R China

[2] Southwest United Grad Sch, Kunming 650092, Peoples R China

[3] Nanjing Tech Univ, Inst Adv Mat IAM, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, Nanjing 211816, Peoples R China

[4] Key Lab Adv Mat Yunnan Prov, Kunming 650093, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 2025年 / 510卷

基金：

中国国家自然科学基金;

关键词：

Broadband near-infrared emission; BaZrO 3 perovskite phosphors; NIR pc-LED device; laser-induced NIR lighting; OPTICAL-PROPERTIES; LUMINESCENCE; MECHANISM; IONS; PHOTOLUMINESCENCE; PEROVSKITE; OXIDE; HOST; CA; AL;

D O I：

10.1016/j.cej.2025.161473

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Near-infrared (NIR) technology has been widely used in analysis, food safety assurance, security monitoring, biomedical applications, etc. due to its features such as non-invasiveness, high sensitivity and real-time responsiveness. Recently, the newly emerging Fe3+-activated phosphors have the potential as non-toxic and environmentally friendly alternatives to the existing Cr3+ or Ni2+-activated phosphors. Here, we report the Fe3+activated BaZrO3 perovskite phosphors excited by 318 nm light, which emitted broadband NIR that covered the region of 800 - 1400 nm, peaked at - 1045 nm and had a FWHM of about - 176 nm with IQE as - 54.12 %. The results of simulation of crystal structure and crystal field intensity suggest that these unique luminescence properties may be contributed from the occupation of Fe3+ ions in [ZrO6] octahedrons with a strong crystal field environment. The NIR pc-LED device emitted NIR with an output power of - 109.71 mW with an electro-optical conversion efficiency was - 6.9 % at 300 mA driving current, and its as the NIR light source for large-area illumination, non-visual and biomedical imaging were demonstrated. This study provides a basis for further studies in the design and application of nontoxic and environmentally friendly Fe3+-activated NIR-II phosphors.

引用

页数：8