A full-spectrum color converter based on tricolor phosphor-in-glass films for laser-driven white lighting

被引：0

作者：

Huang, Lishuo ^{[1
]}

Ye, Renguang ^{[1
,2
]}

Hua, Youjie ^{[1
,2
]}

Qi, Yue ^{[1
]}

Jiang, Guoqing ^{[1
]}

Tan, Ruiming ^{[1
]}

Jiang, Tianzhi ^{[1
]}

Jin, Can ^{[1
]}

Zhao, Jingtao ^{[1
,2
]}

Cai, Muzhi ^{[1
,2
]}

Li, Bingpeng ^{[1
,2
]}

Huang, Feifei ^{[1
]}

Bai, Gongxun ^{[1
,2
]}

Zhao, Shilong ^{[1
,2
]}

Zhang, Junjie ^{[1
,2
]}

Xu, Shiqing ^{[1
,2
]}

机构：

[1] China Jiliang Univ, Coll Opt & Elect Technol, Hangzhou 310018, Peoples R China

[2] China Jiliang Univ, Key Lab Rare Earth Optoelect Mat & Devices Zhejian, Hangzhou 310018, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY C | 2025年 / 13卷 / 14期

关键词：

EFFICIENCY; CRI;

D O I：

10.1039/d4tc05513f

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Full-spectrum laser-driven white lighting shows promise for high-luminance solid-state illumination and is highly desirable for lighting application domains such as education, healthcare, and residential lighting. However, obtaining both a high color rendering index (Ra) and high luminous efficiency (LE) concurrently poses a great challenge for the development of laser-driven white lighting. Herein, a novel tricolor phosphor-in-glass film (PiGF) is designed and fabricated via a facile low-temperature co-sintering strategy. ZnO-Li2O-SiO2 (ZLS) glass along with Y3Al5O12:Ce3+ (YAG), CaAlSiN3:Eu2+ (CASN), and Lu3(Al, Ga)5O12:Ce3+ (LuAGG) phosphors was coated onto sapphire substrates via the blade-coating method and then subjected to low-temperature co-firing, fabricating composite phosphor-in-glass film (PiGF) samples for full-spectrum laser-driven white lighting. High LE and Ra were achieved by optimizing the glass layer thickness, phosphor concentrations, phosphor ratio, film structure, and sintering process. The YAG-PiGF achieves a high luminous flux (LF) of 1129 lm and a Ra of 62. Further addition of CASN and LuAGG phosphors fills the color gaps, resulting in a composite PiGF with a high Ra of 92 and a LE of 212 lm W-1. The excellent balance between Ra and LE makes this color converter highly promising for high-quality laser lighting applications.

引用

页码：7402 / 7410

页数：9