Strategies to host silver quantum clusters in borosilicate glass: How to mutually fulfill PL efficiency and chemical stability?

Tian Hu; Wenyan Zheng; Zhiyu Liu; Jiannan Jia; Xiuxia Xu; Qiang Xu; Xvsheng Qiao; Xianping Fan

Journal of Non-Crystalline Solids: X (Dec 2022)

Strategies to host silver quantum clusters in borosilicate glass: How to mutually fulfill PL efficiency and chemical stability?

Tian Hu,
Wenyan Zheng,
Zhiyu Liu,
Jiannan Jia,
Xiuxia Xu,
Qiang Xu,
Xvsheng Qiao,
Xianping Fan

Affiliations

Tian Hu: State Key Laboratory of Silicon Materials & School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
Wenyan Zheng: State Key Laboratory of Silicon Materials & School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
Zhiyu Liu: State Key Laboratory of Silicon Materials & School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
Jiannan Jia: State Key Laboratory of Silicon Materials & School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China; Ocean Academy, Zhejiang University, Zhoushan 316021, China; Hainan Institute of Zhejiang University, Sanya 572025, China
Xiuxia Xu: State Key Laboratory of Silicon Materials & School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
Qiang Xu: Ocean Academy, Zhejiang University, Zhoushan 316021, China; Hainan Institute of Zhejiang University, Sanya 572025, China
Xvsheng Qiao: State Key Laboratory of Silicon Materials & School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China; Corresponding author.
Xianping Fan: State Key Laboratory of Silicon Materials & School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China; Ocean Academy, Zhejiang University, Zhoushan 316021, China; Hainan Institute of Zhejiang University, Sanya 572025, China; Corresponding author at: State Key Laboratory of Silicon Materials & School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China.

Journal volume & issue: Vol. 16
p. 100132

Abstract

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Silver quantum clusters (Ag QCs), with broadband molecular luminescence, are stabilized in the borosilicate glasses with the [SiO4]/[BO4]−/[BO3] blended networks. The introduction of SiO2 in the B2O3-Ag2O-BaO glasses induces the transformation of [BO3] to [BO4]− to prevent over-growth of Ag QCs → Ag NPs and uniformly disperse Ag QCs in glass matrix. Due to the uniformly distribution of Ag QCs, the photoluminescence (PL) quenching due to cross relaxation (CR) between Ag QCs is highly suppressed, achieving PL quantum yields (QYs) as high as 67.38%. The Ag QCs activated glass based WLEDs exhibit not only excellent chemical durability but also superior luminance performances with a color coordinate of (0.32, 0.37), a correlated color temperature (CCT) of 6030 K and a color rendering index (CRI) of 89.7. Thus, the Ag QCs activated borosilicate glasses can be considered as a new type of efficient luminescent materials for various photonic application.

Published in Journal of Non-Crystalline Solids: X

ISSN: 2590-1591 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials; Science: Chemistry
Website: https://www.journals.elsevier.com/journal-of-non-crystalline-solids-x

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