CuIn<sub>1-x</sub>Ga<sub>x</sub>S<sub>2</sub> (CIGS2) thin-films for solar cells were prepared by rf-magnetron sputtering and were deposited on glass substrate. These films were prepared using a stepwise process consisting of succesive deposition of CuInGa (d = 1500 nm) and ZnS (d = 200 nm) layers. Each layer was structurally characterized by X-ray diffraction and atomic force
microscopy. The microstructural and optical properties of CIGS2 component films of the solar cell in comparison with
those of ZnS and CuInGa films separately deposited onto glass substrates under the same conditions, were studied.
Transmission spectra of our thin films are strongly influenced by deposition conditions and nature of the support material
and they were recorded for each component film and CIGS2 solar cell.
Thin films, rf magnetron sputtering, CIGS2 solar cell, Surface roughness, Optical pr
Neodymium-Iron-Boron (NdFeB) is a material with important magnetic properties, mostly used in permanent
magnet fabrication. Thin layers of NdFeB are needed for miniaturization in electrical engineering, electronics, and for
We applied pulsed lased deposition (PLD) and radio frequency plasma assisted pulsed lased deposition (RFPLD)
in vacuum for obtaining thin films and nanostructures of NdFeB from stoichiometric targets, at different
temperatures. The influence of the laser parameters (wavelengths and fluence), radio-frequency discharge power and
substrate temperature on the NdFeB structures, composition and magnetic properties has been investigated.
The obtained structures have been characterized by Auger electron spectroscopy (AES), Atomic Force
Microscopy (AFM) and optical microscopy. Vibrating Sample Magnetometer (VSM) studies have been performed for
specific magnetic characterization.
In this paper, we report some experimental results concerning new aspects in laser ablation process of the YBCO thin film. Both structural and superconducting properties of the studied films were analyzed by transmission electron microscopy, selected area electron diffraction, elastic recoil detection analysis, Raman spectra, atomic force microscopy images and the ac magnetic susceptibility. We have obtained the epitaxial films with relative large area of c-axis grown film and high critical temperature, without any post ablation annealing process.