Search results for "Al-doped ZnO"

showing 2 items of 2 documents

Optimization of ZnO:Al/Ag/ZnO:Al structures for ultra-thin high-performance transparent conductive electrodes

2012

Al-doped ZnO (AZO)/Ag/AZO multilayer coatings (50-70 nm thick) were grown at room temperature on glass substrates with different silver layer thickness, from 3 to 19 nm, by using radio frequency magnetron sputtering. Thermal stability of the compositional, optical and electrical properties of the AZO/Ag/AZO structures were investigated up to 400 °C and as a function of Ag film thickness. An AZO film as thin as 20 nm is an excellent barrier to Ag diffusion. The inclusion of 9.5 nm thin silver layer within the transparent conductive oxide (TCO) material leads to a maximum enhancement of the electro-optical characteristics. The excellent measured properties of low resistance, high transmittanc…

High transmittanceDiffusionrf-Magnetron sputteringElectro-optical characteristicGlass substrateTransparent conductive oxide RF magnetron sputtering Optical properties Electrical resistivity Al-doped zinc oxide Silver MultilayersSettore ING-INF/01 - ElettronicaSUBSTRATE-TEMPERATUREAg diffusionAl-doped ZnOLow resistanceMultilayerZNOMaterials ChemistryVisible spectral rangeMULTILAYER FILMSAl-doped zinc oxideOptical propertiesMetals and AlloysAZO filmElectrical resistivityOPTICAL-PROPERTIESOXIDE-FILMSSurfaces and InterfacesZinc oxide AluminumRadio frequency magnetron sputteringSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsOptical and electrical propertieElectrodeOptoelectronicsFilm preparationLayer (electronics)Magnetron sputteringUltra-thinRF magnetron sputteringMaterials scienceSilverThermodynamic stabilityOpticsTransparent conductive oxideElectrical resistivity and conductivityThermal stabilityElectrical conductorTransparent conducting filmRoom temperatureThin film solar cellbusiness.industryTransparent conductiveOptical propertieSilver layerHigh transmittanceMultilayersMulti-layer-coatingZnO Electric conductivityMeasured propertiebusinessSubstrate
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The influence of Al doping on the photocatalytic activity of nanostructured ZnO: The role of adsorbed water

2018

Abstract Al doped ZnO nanoparticles (labeled as x% A-ZnO, x = 0.0, 0.5, 1.0, and 1.5) were synthesized by a simple sol-gel method, characterized and tested as photocatalysts for the degradation of a model compound under UV-light irradiation. Diffuse reflectance spectroscopy (DRS) and photoelectrochemical analysis have been performed to evidence their optical and electronic behavior. The structural features of the powders were highlighted by means of specific surface area (SSA) analysis, X-ray diffraction (XRD), Fourier-transform infrared (FTIR) and Raman spectroscopy. Al doping results in enhanced photocatalytic activity of the modified powders with respect to pure ZnO. In particular, the h…

Materials scienceDiffuse reflectance infrared fourier transformBand gapAdsorbed water; Al-doped ZnO; Defects; Nanoparticles; Photocatalysis; Sol-gel; ZnO; Surfaces; Coatings and FilmsSettore AGR/13 - Chimica AgrariaGeneral Physics and Astronomy02 engineering and technology010402 general chemistry01 natural sciencesCoatings and Filmssymbols.namesakeNanoparticlePhotocatalysiAl-doped ZnOAdsorptionSpecific surface areaPhotocatalysisFourier transform infrared spectroscopySol-gelAdsorbed waterDopingSurfaces and InterfacesGeneral Chemistry021001 nanoscience & nanotechnologyCondensed Matter Physics0104 chemical sciencesSurfaces Coatings and FilmsSurfacesAdsorbed water; Al-doped ZnO; Defects; Nanoparticles; Photocatalysis; Sol-gel; ZnO; Surfaces Coatings and FilmsSettore ING-IND/22 - Scienza E Tecnologia Dei MaterialiChemical engineeringZnOPhotocatalysissymbolsNanoparticlesDefectsDefect0210 nano-technologyRaman spectroscopyApplied Surface Science
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