In the last few years nanostructure ZnO is being intensively investigated from the growth control, structural and physical characterization, to device performance. There are now increasing interests in a wide range of ZnO-based ternary compound nanostructures offering even larger possibilities. These compounds can be useful as multi-color light-emitting device, sensors, transparent electrodes, ...

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Aerosol materials synthesis methods [ 1–9 ] have been utilized to prepare a distinct platform of spherical composite materials that incorporate sub-100 nanometer features. Nanostructured microspheres (nsμ S) and extended surfaces made up of metal, metal oxides and sulfi des such as TiO 2 , [ 10–14 ] SiO 2 , [ 15–19 ] Co, [ 20 ] Co 3 O 4 , CuO, NiO, [ 21 ] ZrO 2 , [ 22 ] ZnO, [ 23 , 24 ] Al, [ 2...

Fe3O4/CuO/ZnO nanocomposites with different molar ratio were synthesized using sol-gel method. The as-synthesized samples were characterized by X-ray diffraction (XRD), UVvisible spectroscopy, BET surface area analyszer, and Electron Spin Resonance (ESR). The sonocatalytic-photocatalytic-sonophotocatalytic activity of as-synthesized samples was investigated based on methylene blue degradation. ...

Carrier multiplication-the generation of multiple electron-hole pairs by a single photon-is currently of great interest for the development of highly efficient photovoltaics. We study the effects of infilling PbSe quantum-dot solids with metal oxides by atomic layer deposition on carrier multiplication. Using time-resolved microwave conductivity measurements, we find, for the first time, that c...

Different percentages of CuO and ZnO were added into a local kaolin ceramic-based powder (DD3) with without ZrO2. The modified powders first characterized, then, test for the photocatalytic degradation dyes orange II (OII) was carried out. DD3 that obtained addition ZrO2, ZnO, CuO, prepared by two different methods have shown large very fast activity. Discoloration ratios about 93.6% 100% reach...

Smart solar-blind UV-C band photodetectors suffer from low responsivity in a self-powered mode. Here, we address this issue by fabricating novel enhanced photodetector array based on solution-processed n-ZnO quantum dots (QDs) functionalized p-CuO micro-pyramids. Self-assembled catalyst-free micro-pyramid arrays are fabricated pre-ablated Si substrate pulsed laser deposition without need for ca...

A microfluidic reactor enabled continuous co-precipitation synthesis of CuO/ZnO/Al 2 O 3 catalysts for methanol production.

The production of H2 pure enough to use it in fuel cells requires the development of very efficient catalysts for the WGS reaction. In this study a series of gold catalysts supported on ZnO-promoted CeO2Al2O3 is presented as interesting systems for the purification of H2 streams via WGS. The addition of ZnO remarkably promotes the activity of a Au/CeO2/Al2O3 catalyst. This increase in activity ...