Tag Archives: Nanoparticle

The Structural Characterizations of Polymethel(Methaacrylate) Doped Nanoparticle Metal (Cu,Co,Fe) Thin Film by Using Nd-Yag Laser Ablation (Published)

The structural properties of PMMA doped with ( Cu , Co , Fe ) nanoparticls prepared by laser ablation were studied . In  this  research  the  polymethyl mehtacrylate  (PMMA)  was  dissolved  in chloroform   with (5%) concentration  to  form  homogeneous  solution.  PMMA  doped  with  (Cu  ,Fe ,and Co ( nanoparticale (NPs) prepared by Nd-Yag(532nm) laser ablation. The X-ray diffraction shows  that  the  structure  of  pure  polymer  film  have  an  amorphous  nature,  but PMMA  doped  with  (Cu , Co , Fe)  nanoparticles  are  polycrystalline  structure.  The  results indicate that there are a shifting and reduction in positions of peak intensity as compared with the pure (Cu , Co ,Fe) nanoparticles and there are generated some new peaks appear. The AFM examination reveal to reduction in average nanoparticle diameter after doping with NPs metal (Cu , Co , Fe ) . The FT-IR  examination appear some transmittance band after doping with NPs metal (Cu , Co , Fe ) 

Keywords: Afm, Cobalt, Copper, Crystal Size, Doping, FTIR, Iron, Nanoparticle, Polymethyl Mehtacrylate (Pmma), Xrd

The Structural Properties of Doped Cdo Thin Films with Co Prepared By Laser Ablation (Published)

The prepared samples of thin-film by laser ablation method were achieved. Powders of doped cadmium oxide with cobalt of ratios (0,1,3,5,7)wt% were mixed and then compressing by approximately 10 tons. The samples were ablated by using Neodymium-YAG laser with 1000mW and obtained the plasma plume at 0.1mbar pressure and 250oC. Results indicate by using AFM, XRD and FTIR devices that the surface roughness and the size particle decrease with increasing dopants and there are existence stretching bonds of cadmium oxide with cobalt, and have of a multi-cubical polycrystalline .The doping leads to a small decrease in the intensity of the peaks of the cadmium oxide at (200) especially at a concentration of ratio 7%, but it was obtained lowering increase at (111), However, low peaks in most of them due to doping. Absorbance infrared ray have the greatest values of pure cadmium oxide at energies (617.61) (1117.31)(1458.62)(1624.15)(3450) cm -1 and also get a reduction in the absorption peaks as a result to doping with cobalt

Keywords: AFM. Las ablation., CdO, Cobalt, Doping, FTIR, Nanoparticle, Silver, Structural, Thin Film