Charge trapping properties of electrons and holes in copper-doped zinc oxide (ZnO:Cu) films have been studied by scanning probe microscopy. We investigated the surface potential dependence on the voltage and duration applied to the copper-doped ZnO films by Kelvin probe force microscopy. It is found that the Fermi Level of the 8 at.% Cu-doped ZnO films shifted by 0.53 eV comparing to undoped Zn...

C-doped ZnO hierarchically porous nanoarchitectures were synthesized in situ on indium tin oxide (ITO) through a counter strategy. The PEC performance of the C-doped ZnO nanoarchitectures in the splitting of water without sacrificial reagents was systematically evaluated for the first time. In comparison to other ZnO-based photoanodes in the literature, C-doped ZnO nanoarchitectures exhibit a s...

MOCVD method has been used to grow optical coatings: Sc2O3 is a high index transparent coating while Ta-doped SnO2 is a transparent conductive oxide. Both films show dense packing and excellent properties. The influence of deposition temperature on the microstructure evolution and optical properties of Sc2O3 films was investigated by X-ray diffraction, scanning electron microscopy and spectroph...

Undoped and Ta-doped SnO2 (Sn12xTaxO2) thin films were prepared on Corning 7059 glass substrates by the metal–organic chemical-vapor deposition method. The relative amount of Ta, CTa5XTa /(XTa1XSn), varied from 0 to 7.13 at. %. For the five compositions studied, the lowest resistivity at room temperature was 2.01310 V cm at CTa53.75% with charge carrier density and mobility of 1.27310 cm and 24...

in this work we report synthesis and magnetic characterization of cobalt doped zno nanoparticles (with different percent of doped cobalt oxide). synthesis of the materials was carried out at room temperature by polyacrylamide-gel method, using zink sulfate and cobalt nitrate as source materials, acrylamide as monomer and n,n-methylene bisacrylamide as a lattice reagent. characterization of the ...

Surface x-ray diffraction experiments reveal that, in cobalt-doped ZnO films two to five monolayers thick, Wurtzite-type CoO nanocrystals are coherently embedded within a hexagonal boron-nitride- (h-BN)-type ZnO matrix, supporting the model of a phase separation. First-principles calculations confirm that, in contrast with ZnO, the formation of h-BN-type CoO is unfavorable in the ultrathin film...

Pure ZnO and Sr doped ZnO nanoparticles are synthesized via Co-precipitation method using Zinc acetate dehydrate Zn (CH3COO)2. 2H2O, Strontium acetate Sr (CH3COO)2, as source materials. The influence of Sr dopants contents on the morphology, absorption, emission, and photocatalytic activity of ZnO synthesized nanoparticles was investigated systematically. The photocatalytic activity of pure and...

Achieving red emission from ZnO-based materials has long been a goal for researchers in order to realize, for instance, full-color display panels and solid-state light-emitting devices. However, the current technique using Eu(3+) doped ZnO for red emission generation has a significant drawback in that the energy transfer from ZnO to Eu(3+) is inefficient, resulting in a low intensity red emissi...

We present results of a density functional theory study of MnO in the wurtzite structure. Our motivation is provided by recent experiments reporting ferromagnetism in Mn-doped wurtzite-structure ZnO. We find that wurtzite MnO a) is not strongly energetically disfavored compared with the ground state rocksalt MnO, b) shows strong magneto-structural coupling and c) has a piezoelectric response th...

Tin oxide (SnO2) thin films are widely used by solgel method. One of the most important factors that influence the sensitivities of sensing material is its structural properties especially surface morphology. In this work, we present preparation and characterization of undoped and antimony-doped tin oxide (Sb: SnO2) thin film nanostructures for gas sensing applications. The films were character...