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
作者： Li, Songrui 1 ; Zhang, Huifeng 2 ; Huang, Zhenzhen 1 ; Ma, Jiutong 1 ; Jia, Qiong 1 ;
作者机构： 1.Jilin Univ, Coll Chem, Changchun 130012, Peoples R China
2.Jilin Acad Agr Sci, Inst Agr Qual Stand & Testing Technol, Changchun 130033, Peoples R China
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
页码：
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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