Structural, optical and magnetic properties of Cd(1-x)CoxS thin films prepared by spray pyrolysis

Date

2008-10-01

Author

BACAKSIZ, EMİN
TOMAKİN, MURAT
Altunbas, M.
Parlak, Mehmet
Colakoglu, T.

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

152
views

0
downloads

Structural, optical and magnetic properties of CdS thin films with the addition of Co prepared by (i) spray pyrolysis of Cd1-xCoxS (x <= 0.10) thin films (Type 1) and (ii) Co diffusion doped CdS films (Type 2) were investigated. The undoped film has a hexagonal structure with a strong (112) prefer-red orientation. As the Co concentration in CdS is increased, the preferred orientation changes from (112) to (0 0 2) direction. X-ray photoelectron spectroscopy (XPS) analysis shows that Co atoms on the surface of films are found to be bounded either to S atoms or 0 atoms. Although most of the bindings of Co atoms include Co-O bondings, some of them replace the Cd atoms by making chemical bounds with S atoms. The transmittance spectra indicate the four characteristic absorption maxima at the wavelengths of 680, 685, 729 and 744 nm, which were not observed for the undoped CdS film. Band gap energy E-g decreases from 2.43 to 2.37 eV with increasing Co content from x = 0 to 0.10. The Co-doped Cd1-xCoxS films grown by spray pyrolysis (Type 1) didnot show any sign of ferromagnetic behavior. However, the Co diffused CdS films (Type 2) have clear ferromagnetic loops.

Subject Keywords

Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials, Condensed Matter Physics

URI

https://hdl.handle.net/11511/47663

Journal

PHYSICA B-CONDENSED MATTER

DOI

https://doi.org/10.1016/j.physb.2008.07.006

Collections

Department of Physics, Article

Suggestions

OpenMETU
Core

Structural and electronic properties of carbon-doped c-BN(110) surface Kökten, Hatice (Elsevier BV, 2009-12-15) The structural and electronic properties of a substitutional C atom in a neutral charge state on both the B and N site of the c-BN(110) surface have been investigated from a theoretical point of view using density functional theory. The impurity formation energies [unrelaxed (E(f)(0)) and relaxed (E(f))] are reported for the first time for the c-BN(110) surface.
STRUCTURAL STABILITY AND ENERGETICS OF FCC METAL MICROCLUSTERS - EMPIRICAL MANY-BODY POTENTIAL-ENERGY FUNCTION CALCULATION Erkoç, Şakir (Wiley, 1990-09-01) The structural stability and energetics of microclusters containing 3 to 7 atoms of f.c.c. metal elements are investigated. A recently developed empirical many‐body potential function (PEF) is used in the calculations, which comprises two‐ and threebody atomic interactions. The PEF satisfies both, bulk cohesive energy and stability condition. It is found that the energetically most stable structures of microclusters are in compact form.
Structural and electronic properties of single-wall ZnO nanotubes Erkoç, Şakir; Kokten, H (Elsevier BV, 2005-07-01) The structural and electronic properties of armchair and zigzag models of single-wall ZnO nanotubes have been investigated by performing semiempirical molecular orbital self-consistent field calculations at the level of AM1 method within the RHF formulation. It has been found that these structures are stable and endothermic. The armchair model has zero net dipole moment, whereas the zigzag model has nonzero net dipole moment. The interfrontier molecular energy gap of these systems are different; the gap of ...
Optical properties of (Ga2Se3)(0.)(75) - (Ga2S3)(0.)(25) single crystals by spectroscopic ellipsometry Işık, Mehmet; Hasanlı, Nızamı; Gasanova, L. (Elsevier BV, 2019-05-01) Structural and optical properties of 75 mol % Ga2Se3 - 25 mol % Ga2S3 system of single crystals were investigated by experimental techniques of x-ray diffraction (XRD), energy dispersive spectroscopy, Raman spectroscopy and ellipsometry. XRD pattern indicated that the studied compound has crystalline nature with cubic structure. Vibrational modes in the crystal were revealed using Raman spectroscopy experiments in the 90-450 cm(-1) frequency range and nine modes were observed in the spectrum. Ellipsometry m...
Material and Si-based diode analyses of sputtered ZnTe thin films Güllü, Hasan Hüseyin; Surucu, O. Bayrakli; Isik, M.; Terlemezoglu, M.; Parlak, M. (Springer Science and Business Media LLC, 2020-07-01) Structural, optical, and electrical properties ZnTe thin films grown by magnetron sputtering technique were studied by X-ray diffraction, atomic force microscopy, Raman spectroscopy, and electrical conductivity measurements. Structural analyses showed that ZnTe thin films grown on soda-lime glass substrates have a cubic crystalline structure. This crystalline nature of the films was also discussed in terms of Raman active modes. From atomic force microscopy images, the smooth and dense surface profile was o...

Citation Formats

E. BACAKSIZ, M. TOMAKİN, M. Altunbas, M. Parlak, and T. Colakoglu, “Structural, optical and magnetic properties of Cd(1-x)CoxS thin films prepared by spray pyrolysis,” PHYSICA B-CONDENSED MATTER, pp. 3740–3745, 2008, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/47663.