Preparation and Optical Properties of AgIn Alloy Quantum Dots Doped Glass

doi:10.15541/jim20140015

Abstract

Abstract:

Indium-silver alloy quantum dots doped sodium borosilicate (NBS) glass was prepared by Sol-Gel method with controlled atmosphere technology. The morphology and microstructure of AgIn alloy quantum dots in the glass were characterized by means of X-ray powder diffraction (XRD), X-ray photoelectron spectroscope (XPS), high- resolution transmission electron microscope (HRTEM) and electron diffraction (SAED). The fluorescent properties of the glass by fluorescence spectrometer were studied. The results showed that indium-silver alloy quantum dots with an average grain size of 5 nm were finely dispersed in the sodium borosilicate glass after heat-treated at 600℃. Indium- silver alloy quantum dots in the glass exhibited a fluorescence peak at around 435 nm which nominated AgIn quantum dots doped NBS glass as the candidate glass for laser sources, nonlinear media and photonic applications.

Key words: indium-silver alloy quantum dots, Sol-Gel method, fluorescence, sodium borosilicate glass

CLC Number:

TQ174

YIN De-Wu, LIU Zhen, YANG Xin-Yu, ZHANG Xi-Yan, XIANG Wei-Dong. Preparation and Optical Properties of AgIn Alloy Quantum Dots Doped Glass[J]. Journal of Inorganic Materials, 2014, 29(10): 1034-1038.

Figures/Tables 4

Fig. 1 XRD patterns of as-obtained glass after heat-treatment at different temperatures

Fig.2 Ag3d and In3d core XPS spectra of AgIn glass sample after treatment in O2→N2→H2 atmosphere

Fig.3 TEM image (a), SAED pattern (b), HRTEM image (c), EDX analyses (d) and size distribution (e) of AgIn glass sample

Fig. 4 Fluorescence emission spectra of the glass doped with AgIn quatumn dots and pure NBS glass

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