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One-pot synthesis of Ag nanoparticle/Ag-doped SiO2 composite film and their enhancement effect for CdSe QDs

    https://doi.org/10.1142/S1793604719500085Cited by:3 (Source: Crossref)
    This article is part of the issue:

    In this work, Ag nanoparticle/Ag-doped SiO2 composite films were prepared with AgNO3 and tetraethoxysilane precursors through a simple and environmentally friendly sol–gel method under high annealing temperatures. The effect of different annealing temperatures (400C, 500C, 600C, and 700C) on the structural and optical characters of the composite films was investigated. The localized surface plasmon resonance (LSPR) effect of the Ag nanoparticle/Ag-doped SiO2 composite films enhanced the fluorescence intensity of CdSe quantum dots (QDs). Scanning electron microscopy (SEM), UV-vis spectrophotometer and photoluminescence (PL) spectroscopy were used to characterize the morphology and optical properties of the composite nanostructure.