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

IF 9.6 1区化学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Materials Letters Pub Date : 2024-12-25 DOI:10.1021/acsmaterialslett.4c0197510.1021/acsmaterialslett.4c01975

Songrui Li, Huifeng Zhang, Zhenzhen Huang, Jiutong Ma and Qiong Jia*,

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Abstract

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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来源期刊

ACS Materials Letters MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

14.60

自引率

3.50%

发文量

261

期刊介绍： ACS Materials Letters is a journal that publishes high-quality and urgent papers at the forefront of fundamental and applied research in the field of materials science. It aims to bridge the gap between materials and other disciplines such as chemistry, engineering, and biology. The journal encourages multidisciplinary and innovative research that addresses global challenges. Papers submitted to ACS Materials Letters should clearly demonstrate the need for rapid disclosure of key results. The journal is interested in various areas including the design, synthesis, characterization, and evaluation of emerging materials, understanding the relationships between structure, property, and performance, as well as developing materials for applications in energy, environment, biomedical, electronics, and catalysis. The journal has a 2-year impact factor of 11.4 and is dedicated to publishing transformative materials research with fast processing times. The editors and staff of ACS Materials Letters actively participate in major scientific conferences and engage closely with readers and authors. The journal also maintains an active presence on social media to provide authors with greater visibility.