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Articles by Raheem Abed Jeber
Total Records ( 3 ) for Raheem Abed Jeber
  Saleh H. Abud , Ali Kitab Attia and Raheem Abed Jeber
  In this study, cobalt and copper ferrite compounds were prepared by co-precipitation method, the nanocompound (CoxCu1–xFe2O4) was then prepared by mixing cobalt ferrite and copper ferrite with different ratios of cobalt. The structural, morphological and magnetic properties of the resulted nanoparticles were studied. The XRD measurements showed dominant and high peaks located at 35.54° and 35.31° belong to the (311) CoFe2O4 and (211) CuFe2O4 planes, respectively at the same time, a decrease in grain size was observed with an increase in the ratio of copper ferrite as well as a decrease in the expansion of the magnetic hysteresis ring by increasing copper ratio.
  Mohammed Hadi Shinen , Raheem Abed Jeber and Burak Kadem
  Thin nanoparticles of zinc oxide were prepared using sol-gel. "The samples were prepared nano thin film (71 nm), various weight ratios were added from the MWCNT to the colloidal solution and at a rate of" (0.423, 0.921, 1.624%). These solutions were deposited by using the spin coating technique on the glass substrate and interdigitated finger electrode. For the purpose of knowing the sensitivity and the extent of response of these samples to detect the different vapors of some toxic gases (ethanol, methanol, acetone and nitrogen). Nano thin film were prepared by using spin coting technique. The synthetic properties of these membranes were studied using X-ray diffraction.
  Raheem Abed Jeber , Mokhalad Ali Zbalh , Osamah Kareem Mohammed and Mohammed Hadi Shinen
  Poly (O-Toluidine) (POT) was used as a basic material in this research where nano-films of POT were deposited on n-type silicon wafers. The thickness of the (POT ) films was controlled by the spin coating process. Different thickness of (POT) (142, 97 and 81 nm) were obtained by using different spin speed (1000, 2000 and 3000 rpm), respectively. The current density-Voltage (J-V) characteristics were achieved in both light (100 mw cmG2) and dark conditions. The parameters of the photovoltaic samples that is open circuit Voltage (Voc), short-circuit current density (Jsc), Fill Factor (FF) and energy conversion efficiency (η) were calculated. We found that the best thickness of (POT ) film is 97 nm to get best energy conversion efficiency, short-circuit current density and maximum power point.
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