Encapsulating Gold Nanoclusters into Melamine-Formaldehyde Polymer Nanoparticles for Confinement Induced Enhanced Emission toward Ratiometric Sensing and Light-Emitting Diode Fabrication

文献类型： 外文期刊

第一作者： Li, Songrui

作者： Li, Songrui;Huang, Zhenzhen;Ma, Jiutong;Jia, Qiong;Zhang, Huifeng

作者机构：

期刊名称：ACS MATERIALS LETTERS （ 影响因子：8.7； 五年影响因子：9.9 ）

ISSN：

年卷期： 2024 年 7 卷 1 期

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收录情况： SCI

摘要： Low photoluminescence quantum yield (PLQY) has long been one of the key issues that impedes the versatile applications of gold nanoclusters (AuNCs). In this work, melamine-formaldehyde polymer nanoparticles were employed as carriers to encapsulate AuNCs (AuNCs-MF PNPs), which can trigger the confinement induced enhanced emission (CIEE) effect, remarkably enhancing the PLQY more than 25 times from 1.46% (AuNCs) to 36.90% (AuNCs-MF PNPs) and improving the stability toward pH. By simultaneously incorporating AuNCs-MF PNPs and CDs as sensing probes, ratiometric fluorescence detection of H2S with improved sensitivity was achieved. To realize the on-site detection of H2S, a portable sensing platform based on a smartphone was constructed. Considering the high PLQY of AuNCs-MF PNPs, a light-emitting device (LED) was fabricated based on AuNCs-MF PNPs with favorable characteristics. This work not only provides a novel strategy for preparing AuNCs with high PLQY but also highlights their potential in fluorescence sensing and the field of intelligent luminescence.

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