ABDELKADER Mohammedi
عبد القادر امحمدي
abdelkader.mohammedi@univ-msila.dz
0669551599
- Departement of Physics
- Faculty of Sciences
- Grade PHd
About Me
Certificat Master. in جامعة المسيلة
Research Domains
Study the thin films of transparent conductive oxides
LocationMsila, Msila
Msila, ALGERIA
Code RFIDE- 03-07-2017
- 15-07-2015
- 1992-12-17 00:00:00
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ABDELKADER Mohammedi birthday
- 2022
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2022
Effet of cobalt doping on the physical properties of ZnO thin films for photocatalytic application
In this work pure and Co doped ZnO thin films have been deposited onto glass substrate at different levels of Co-doping. XRD, SEM, and optical spectroscopy techniques have been used to investigate all films. The grain size was found to increase upon Co doping from 26.2 nm to 50.3 nm.
Citation
MILOUD Ibrir , abdelkader MOHAMMEDI , Omar MEGLALI , ,(2022), Effet of cobalt doping on the physical properties of ZnO thin films for photocatalytic application,1er Séminaire National des sciences du Génie des Procédés,USTHB-Alger
- 2022
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2022
Effet of doping Co-Cu co-doped ZnO on the structural and optical properties prepared by the spin-coating method
Effet of doping Co-Cu co-doped ZnO on the structural and optical properties prepared by the spin-coating method
Citation
MILOUD Ibrir , abdelkader MOHAMMEDI , Omar MEGLALI , ,(2022), Effet of doping Co-Cu co-doped ZnO on the structural and optical properties prepared by the spin-coating method,1st National Conference on Materials, Energy & Environment,Biskra
- 2022
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2022
Optical properties of Mg Doped Znic Oxide thin films deposited on glass substrates by spin coatingtechnique
Optical properties of Mg Doped Znic Oxide thin films deposited on glass substrates by spin coatingtechnique
Citation
MILOUD Ibrir , abdelkader MOHAMMEDI , ,(2022), Optical properties of Mg Doped Znic Oxide thin films deposited on glass substrates by spin coatingtechnique,The First International Seminar on Materials synthesis and and Evvironmental Monitoring,Ourgla
- 2021
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2021
Morphological, structural optical characteristics of ZnO:Cu thin films elaborated by chemical method
Morphological, structural optical characteristics of ZnO:Cu thin films elaborated by chemical method
Citation
MILOUD Ibrir , abdelkader MOHAMMEDI , ,(2021), Morphological, structural optical characteristics of ZnO:Cu thin films elaborated by chemical method,The organizing committee of the first International Conference on Sustainable Energy and Advanced Materials,Ourgla
- 2020
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2020
physics properties of synthesized transition metal (co)-doped zno thin film for photovoltaic application
In this work we prepared the thin films of zinc oxide inlaid with cobalt atoms on glass substrates using sol-gel spin coating technology in different doping concentration (0%, 2% and 3%). Structural optical and electrical properties were studied by XRD, FTIR, UV-visible and quater point respectively. Structural properties showed that the films were well crystallized and had a hexagonal wurtzite crystalline structure with crystalline constants a = b = 3.249Å and c = 5.206Å for pure zinc oxide these values change as the cobalt concentration changes and the grain size were calculated. UV-Visible measurements indicated that the cobalt atomization decreases band gap, the extinction coefficient and refractive index were calculated. Structural, optical and electrical results have shown that thin films and method of preparation can help photovoltaic applications in solar cells and can improve yield for this application.
Citation
abdelkader MOHAMMEDI , MILOUD Ibrir , Omar MEGLALI , AHMED Saoudi , ,(2020), physics properties of synthesized transition metal (co)-doped zno thin film for photovoltaic application,1st international symposium ‘Environment and Sustainable Development’,university of relizan
- 2020
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2020
PHYSICS PROPERTIES OF SYNTH ESIZED TRANSITION METAL (CO)-DOPED ZNO THIN FILM FOR PHOTOVOLTAIC APPLICATION
PHYSICS PROPERTIES OF SYNTH ESIZED TRANSITION METAL (CO)-DOPED ZNO THIN FILM FOR PHOTOVOLTAIC APPLICATION
Citation
MILOUD Ibrir , abdelkader MOHAMMEDI , Omar MEGLALI , ,(2020), PHYSICS PROPERTIES OF SYNTH ESIZED TRANSITION METAL (CO)-DOPED ZNO THIN FILM FOR PHOTOVOLTAIC APPLICATION,1s International Symposium 'Environment & Sustainable Development,Relizane
- 2019
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2019
Optical properties of synthesized metal transition (Fe)-doped ZnO transparent thin films prepared by sol-gel spin coating Solar cells applications
An important milestone in the development of photovoltaic thin-film solar cells is the achievement of conversion efficiences. This work describes the highest efficiency single junction thin-film cell reported to date. n-ZnO/n-CdS/p- CuInSe2 deposited on glass substrate. The current achievements are due to improved properties of ZnO were prepared In this present study, iron doped zinc oxide thin films (ZnO: Fe) were prepared by using a simple chemical sol–gel spin coating technique on the substrate of glass varying the Fe doping concentration 0%, 1%, 5% and 10% wt. Structural and optical properties were studied respectively by X-ray diffraction and UV-visible spectroscopy. Structural results shown that all elaborated thin films are hexagonal wurtzite structure with a preferred orientation along [002] direction. Note that the lattice parameter a=b, c increases while the c constant decreases with the increasing in the Fe concentration. We found that the crystalline size increases with the addition of a Fe, it is achievedby its maximum value 21 nm for 5%. The masses density and the crystals number were calculated, the obtained resultes indicate that they are inversly proportional to the grain size the UV–visible optical transmittance measurements show that films absorption is due to allowed direct transition with a band gap ranged from 3.27 to 3.16 eV.
Citation
abdelkader MOHAMMEDI , MILOUD Ibrir , Omar MEGLALI , AHMED Saoudi , Moufdi. Hadjab, ,(2019), Optical properties of synthesized metal transition (Fe)-doped ZnO transparent thin films prepared by sol-gel spin coating Solar cells applications,The 2nd Algerian-German International Conference on New Technologies and their applications (AGICNT),SETIF - Algeria
- 2019
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2019
EFFECT OF THE DEPOSITION TEMPERATURE OF CUO-CU2O SYSTEM BY CHEMICAL SPRAY
In the present work, CuO-Cu2O thin films were deposited on cleaned glass substrates with various temperature namely (200°,260°,320°,380°,440°,500°) by spray technique. To investigate the influence of the deposition temperature on the structural, optical and electrical properties of CuOCu2O thin films, the resulting films were characterized by means of X-ray diffraction, UV-visible spectrophotometer, photocurrent. X-ray diffraction analysis indicated that copper oxide (CuO) thin films prepared has polycrystalline structure and when increase the temperature of thin film over than 440° C ,the thin film turns from phase Cu2O to CuO phase. The optical studies showed that the gradual decrease in the transmittance of the layers with the increase of the deposition temperature. In conclusion, we have been able to develop a thin layers of copper oxide CuO-Cu2O system) by a simple chemical method and the properties of the considered interesting and motivating.
Citation
AHMED Saoudi , Yazid Bouznit , abdelkader MOHAMMEDI , Amroune.Ibtissam, Bendjedi.Bouchra, Dilmi.Toufiq, ,(2019), EFFECT OF THE DEPOSITION TEMPERATURE OF CUO-CU2O SYSTEM BY CHEMICAL SPRAY,4th INTERNATIONAL SYMPOSIUM ON MATERIALS AND SUSTAINABLE DEVELOPMENT (ISMSD2019),Boumerdes - Algeria
- 2019
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2019
Effect (Co) On optical and electrical properties thin films ZnO nanostructure
In this work thin layers of ZnO were prepared with Co cobalt element in different doped concentration, On the substrate of glass prepared by sol–gel spin coating technique Concentration of doped was (0, 1 and 2%). It is for many uses, optical and electrical properties respectively were studied by UV-visible spectroscopy and by EDX by used four points . Where optical studies resulted in the results of the transmittance of the energy gap-band and the extiention coefficient and refractive index figure of merit as the rates of deflection cobalt [1, 2]. As for the electrical results, we studied the effect of the deflection ratios. We determined the electric conductivity and the square resistance. Through the study and the relationship between the optical and electrical properties, the figure of merit was calculated for the Photovoltaic uses.
Citation
abdelkader MOHAMMEDI , MILOUD Ibrir , Omar MEGLALI , ,(2019), Effect (Co) On optical and electrical properties thin films ZnO nanostructure,CONFERENCE INTERNATIONAL DE PHYSIQUE ET CHIMIE QUANTIQUE CIPCQ 2019,Université de Bejaia
- 2019
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2019
Optical properties of synthesized metal transition (Fe)-doped ZnO transparent thin films prepared by sol-gel spin coating Solar cells applications
Optical properties of synthesized metal transition (Fe)-doped ZnO transparent thin films prepared by sol-gel spin coating Solar cells applications
Citation
MILOUD Ibrir , abdelkader MOHAMMEDI , Omar MEGLALI , ,(2019), Optical properties of synthesized metal transition (Fe)-doped ZnO transparent thin films prepared by sol-gel spin coating Solar cells applications,Second Algerian German International on new Technologies and their Applications,Sétif
- 2019
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2019
Effect (Co) On optical and electrical properties thin films ZnO nanostructure
Effect (Co) On optical and electrical properties thin films ZnO nanostructure
Citation
MILOUD Ibrir , abdelkader MOHAMMEDI , Omar MEGLALI , ,(2019), Effect (Co) On optical and electrical properties thin films ZnO nanostructure,3~me Congrés International de Physique et Chimie Quantique,Bijia
- 2018
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2018
Study of structural and optical properties of nanostructure Ni doped ZnO thin films prepared by sol–gel spin coating technique
In this work undoped, thin films and doped ZnO with iron concentrations were deposited on glass substrates by sol-gel spin coating. The doping concentrations of Ni are 0, 2, and 5 (% mol). The structural and optical properties were characterized by X-ray diffraction (XDR) and by UV-visible spectrometry. The results show that all the thin films crystallized in the wurtzaite hexagonal structure with a preferential orientation according to the atomic plane (002). The lattice parameter a has increased and the lattice parameter c decreased as a function of the Ni concentration. We also note that the crystallite size increases with the Ni concentration, with a maximum maximal size was found to be about 24 nm for the film of 5D. As far as optical measurements are concerned, we have found that gap energy (Eg) decreases but Urback energy increases with increasing Ni concentration.
Citation
abdelkader MOHAMMEDI , MILOUD Ibrir , Omar MEGLALI , taieb refice, ,(2018), Study of structural and optical properties of nanostructure Ni doped ZnO thin films prepared by sol–gel spin coating technique,International Conference on Materials Science 2018 (ICMS2018),university of setif 1
- 1996
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1996
Magnetic properties of Ultrathin Films of Cr on W(001).
Abstract We have investigated the magnetic properties of Cr layers adsorbed on W(001) by means of self-consistent tight-binding calculations in the framework of the Hubbard Hamiltonian within the unrestricted Hartree - Fock approximation. We have observed that the polarization appears at the Cr - W interface until the fourth plane is reached and the magnetic moment in the W interface decreases when the number of Cr layers increases. In all cases we obtain an antiferromagnetic coupling between Cr layers and Cr - W interfaces. The general results can be understood in terms of the competition between surface and interface effects.
Citation
ABDELMADJID Boussendel , abdelkader MOHAMMEDI , A.Haroun, , (1996), Magnetic properties of Ultrathin Films of Cr on W(001)., J. Phys. Condens. Matter, Vol:8, Issue:23, pages:5, iopscience.iop.org