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Bright and Color-Saturated Emission from Blue …

In summary, the work describes a novel route to synthesize Ag2S/PMMA nanocomposite in n-heptane/AOT/water microemulsions. The FT-IR spectrum shows that the composite has the characteristic bands of nano-Ag2S and pure PMMA. The nano-Ag2S UV–Vis absorption peak is about 270 nm, which indicates the quantum confinement effect. The XRD pattern shows the structure of the composite which reveals that β-Ag2S particles are formed. The TEM photograph of the sample shows that the Ag2S nanoparticles are elliptical with the particle size in the range 20–30 nm, and they are distributed in PMMA homogeneously. The PMMA not only plays an important role of protecting the Ag2S nanoparticles from agglomeration, but also uses as carrier for the inorganic nanoparticles which can be utilized for devices. The microemulsion method has many potential advantages for applications: it is simple, time-saving, and the size of particles is controlled. This process can easily be applied to a range of inorganic nanoparticles/polymer composite with different sizes and compositions.

In the paper, we describe an approach preparing Ag2S/PMMA composite materials which in principle can be used to prepare a range of inorganic/polymer composite materials from water-in-oil microemulsion. The nanoparticles confined to the micellar cores can be precipitated simultaneously, while the surfactant remains in the solution. It is known that the nano-Ag2S particles are prone to aggregating in a sort of “confined crystallites”. After polymerization, PMMA coated the Ag2S crystals formed in the system. The resulting polymer-coated metal sulfide is expected to be useful for electronic and optical device application. The obtained nanocomposites were characterized by fourier transform infrared (FT-IR) spectra, UV–Vis absorption spectroscopy, transmission electron microscopy (TEM), and X-ray powder diffraction (XRD).

Background: Previous studies have shown low rates of eating disorders in some developing countries
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Advanced Materials Interfaces - Early View - Wiley …

Polymer nanotechnology: Nanocomposites - …
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93, 1, 013108 (2008) The Magnetoelectric Effect in Ni-Fe Alloy/ZnO Nanorod Array Composites, Nanotechnology, 19, 48, 485709 (2008) Nanopatterned optical and magnetic La0.6Ca0.4MnO3 arrays : Synthesis, fabrication, and properties, Journal of Materials Research, 24, 394-403 (2009) Optical detection of magnetoelectric effect in the composite consisting of InGaN/GaN multiple quantum wells and FeCo thin film, Appl.

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Catastrophic Phase Inversion of Water-in-Oil …


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