نتایج جستجو برای: ag zno
تعداد نتایج: 62522 فیلتر نتایج به سال:
Within EU FP7 project NANOVALID, the (eco)toxicity of 7 well-characterized engineered nanomaterials (NMs) was evaluated by 15 bioassays in 4 laboratories. The highest tested nominal concentration of NMs was 100 mg/l. The panel of the bioassays yielded the following toxicity order: Ag > ZnO > CuO > TiO2 > MWCNTs > SiO2 > Au. Ag, ZnO and CuO proved very toxic in the majority of assays, assumingly...
Surface modification on zinc oxide nanorods (ZnO NRs) by encapsulating with silver nanoparticles-carbon (Ag NPs-C) composite was done and its characterisation undertaken. Field emission scanning electron microscopy (FESEM) shows a thin film of Ag NPs-C the ZnO NRs. Diffuse reflectance spectroscopy (DRS) has higher in 320-380 nm range, small absorption peak at 320 due to NPs plasmonic effect. NR...
Pure ZnO, Ag doped ZnO and Ag-Fe co-doped ZnOwere preparedusing thermal evaporation. XRD analysis confirms that all layers present a hexagonal wurtzite structure; however, there is small shift in the peaks position due to thedistortion of film’s lattice. Scanning Electron Microscopy (SEM) reveals morphological variation surfaces doping. Ag:ZnO films have nanostructured surface, Ag-Fe:ZnO showed...
This paper gives an overview on the recent advances oxide/metal/oxide (OMO) flexible plastic substrates and their applications as electrodes for organic perovskite solar cells. The morphological, optical electrical characteristics of different type OMO such as: IMI (ITO/Metal/ITO), ZAZ (ZnO/Au or Ag/ZnO), NAN (NiO/Ag/NiO), TAT (TiO2/Ag/TiO2), DMD (MoO3/Ag/MoO3, SnO2/Ag/SnO2 etc.) collected from...
Sensitive and selective determination of harmful organophosphate is rigorously fundamental due to its large negative influence on the environment human health. Ultrasensitive fluorescence nanocomposite was developed for malathion detection which based electrostatic interaction between polyaniline Ag-ZnO nanocomposite. The (Ag-ZnO/PANI) prepared via sol-gel technique next in situ oxidative polym...
Introduction: Chitosan has the property of inhibition of the growth of many pathogenic bacteria and fungi. Tissue conditioners are good substances for the growth and colonization of a variety of micro-organisms. The aim of this research was to investigate the antibacterial and antifungal properties of Chitosan, ZnO and Ag nanoparticles added to tissue conditioners. Methods: In this clinical tr...
In this study, bimetallic nanoparticles (NPs) of silver (Ag) and zinc oxide (ZnO) were synthesized using Leptadenia pyrotechnica leaf extract for the first time. Monometallic NPs also obtained comparison. The characterization prepared was carried out various techniques, including UV-Visible spectroscopy (UV-Vis), scanning electron microscopy (SEM), X-ray diffraction (XRD). latter confirmed crys...
We report substantially enlarged lateral photovoltaic effect (LPE) in the ZnO/Ag/Si nanostructures. The maximum LPE sensitivity (55.05 mv/mm) obtained in this structure is about seven times larger than that observed in the control sample (7.88 mv/mm) of ZnO/Si. We attribute this phenomenon to the strong localized surface plasmon resonances (LSPRs) induced by nano Ag semicontinuous films. Quite ...
A novel nonpolar structure of 2 monolayer (ML) thick ZnO(0001) films grown on Ag(111) has been revealed, using surface x-ray diffraction and scanning tunneling microscopy. Zn and O atoms are arranged in planar sheets like in the hexagonal boron-nitride prototype structure. The observed depolarization is accompanied by a significant lateral 1.6% expansion of the lattice parameter and a 3% reduce...
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