In this work, using the spin coating method to create polyvinylidene fluoride (PVDF)/polyethylene... more In this work, using the spin coating method to create polyvinylidene fluoride (PVDF)/polyethylene oxide (PEO) thin films, the effects of nano-tungsten oxide (WO 2 ) doping were investigated. The novelty of this research lies in its investigation of varying weight concentrations of WO 2 nanoparticles (NPs) within the composite films. Comprehensive characterization techniques were employed, including structural analysis via X-ray diffraction (XRD), which revealed a clear and prominent peak in the XRD of the PVDF/PEO films, and the films' polycrystalline nature with tetragonal structures. The grain size was noted to increase with higher WO 2 NPs doping. Field emission scanning electron microscopy (FE-SEM) showed hexagonal-like α-phase PVDF crystals and uniform distribution of WO 2 NPs. Furthermore, Fourier-transform infrared spectroscopy (FTIR) confirmed the characteristics of PVDF/PEO and identified specific doping compounds, confirming successful incorporation. The optical transmittance spectra unveiled the films' optical band gap energy, optical transition types, and absorption characteristics, where novelty emerged as the band gap energy significantly increased from 3.0 eV to 3.64 eV with an increased WO 2 NPs weight doping percentage, signifying profound electronic structure modifications and potential applications in optoelectronics and sensors.
Journal of Wasit for Science and Medicine, Apr 7, 2020
By using a conventional solid-state reaction technique, a group of the superconducting samples wi... more By using a conventional solid-state reaction technique, a group of the superconducting samples with nominal composition Bi2-xPb0.3WxSr2Ca2Cu3O10±δ with (0≤x≤0.5) sintered at 840 ᵒ C for 140h in the air have been prepared. The effect substitution of tungsten nanoparticles on the physical properties of Bi sites was studied. X-ray diffraction (XRD) studies showed that all our samples are polycrystalline with orthorhombic structures and presence two phases: high-Tc phase (2223), low-Tc phase (2212) and an impurity phase Some impurities likeSr2Ca2Cu7Oδ, CaO and WO . In the prepared samples the lattice parameter values and the volume fraction of high-Tc phase are calculated. Electrical resistivity measurements show that the values of critical temperature Tc increase with tungsten content. The highest transition temperature, Tc, obtained for Bi2-xPb0.3WXSr2Ca2Cu3O10+δ composition was 191.8K with x=0.3.
Indian journal of forensic medicine and toxicology, Jan 25, 2020
Current research involves preparing cerium oxide nanoparticles using simple, environmental-friend... more Current research involves preparing cerium oxide nanoparticles using simple, environmental-friendly green synthesis approach via fresh green tea leaf extract (Camellia sinensis) as a capping and reducing agent, Ultraviolet-visible spectroscopy (UV-Vis.) is used to check the formation of nanoparticles by investigate the absorption peak and energy gap (E g ); Maximum absorption peak was around 295nm and E g was 4.2eV calculated using Planck's equation, X-Ray diffraction (XRD) analysis of Nano powder stated that Cerium Oxide has a cubic fluorite structure with face centered cubic (FCC) structure, blood serum glucose levels, liver functions after CeO 2 Nanoparticles treatment for rats were reported in this paper. Forty eight adult male rats were used and divided randomly into six groups each group has eight rats (n=8), Results stated that blood glucose levels, liver enzymes were increased in groups that injected by dexamethasone while considerably modified in rats administered by Cerium Oxide Nanoparticles.
The conventional solid-state reaction method was utilized to prepare a series of superconducting ... more The conventional solid-state reaction method was utilized to prepare a series of superconducting samples of the nominal composition Bi 2-x Pb 0.3 W x Sr 2 Ca 2 Cu 3 O 10+ with 0≤x≤0.5 of 50 nm particle size of tungsten sintered at 850 0 C for 140h in air . The influence of substitution with W NPs at bismuth (Bi) sites was characterized by the X-ray diffraction (XRD), scanning electron microscopy (SEM) and dc electrical resistivity. Room temperature X-ray diffraction analysis revealed that there exists two phases, i.e. Bi-( ) and Bi-( ), in addition to the impurity phases of (SrCa) 2Cu2O3 , Sr 2 Ca 2 Cu 7 O δ , Ca 2 PbO 4 , CaO, and WO. It was found that the crystallographic structure of all samples was orthorhombic. Lattice parameter values and the volume fraction of the ( )-phase of the prepared samples were also calculated. The superconductivity transition temperature (T c ) for samples subjected to substitution with W NPs was found to be higher than that for the pure sample. The optimal value of W NPs content in (Bi, Pb)-2223 system was found to be at x=0.3.
Zinc Oxide Nanoparticles have been prepared using a simple green synthesis method by green tea ex... more Zinc Oxide Nanoparticles have been prepared using a simple green synthesis method by green tea extract (Camellia sinensis) as a reducing and capping agent, XRD measurement of Nano powder stated that Zinc Oxide had a hexagonal wurtzite structure, UV-Vis. The maximum absorption peak was approximately 318 nm and the energy gap was nearly 3.8eV calculated using Planck's equation, blood serum sugar levels, liver function after ZnO NPs injection for rats was recorded. Forty-eight adult male rats were used and separated randomly into six groups of eight (n=8) rats in each group.Results stated that blood glucose levels, liver enzymes were increased in groups that injected by dexamethasone while considerably modified in rats administered by the first dose (100 mg/kg) of ZnO Nanoparticles while the other dose (300 mg/kg) hadn't any significant effects.
Current research involves preparing cerium oxide nanoparticles using simple, environmental- frien... more Current research involves preparing cerium oxide nanoparticles using simple, environmental- friendly green synthesis approach via fresh green tea leaf extract (Camellia sinensis) as a capping and reducing agent, Ultraviolet-visible spectroscopy (UV-Vis.) is used to check the formation of nanoparticles by investigate the absorption peak and energy gap (Eg); Maximum absorption peak was around 295nm and Eg was 4.2eV calculated using Planck’s equation, X-Ray diffraction (XRD) analysis of Nano powder stated that Cerium Oxide has a cubic fluorite structure with face centered cubic (FCC) structure, blood serum glucose levels, liver functions after CeO2 Nanoparticles treatment for rats were reported in this paper. Forty eight adult male rats were used and divided randomly into six groups each group has eight rats (n=8), Results stated that blood glucose levels, liver enzymes were increased in groups that injected by dexamethasone while considerably modified in rats administered by Cerium Ox...
The conventional solid-state reaction method was utilized to prepare a series of superconducting ... more The conventional solid-state reaction method was utilized to prepare a series of superconducting samples of the nominal composition Bi2-xPb0.3WxSr2Ca2Cu3O10+d with 0≤x≤0.5 of 50 nm particle size of tungsten sintered at 8500C for 140h in air . The influence of substitution with W NPs at bismuth (Bi) sites was characterized by the X-ray diffraction (XRD), scanning electron microscopy (SEM) and dc electrical resistivity. Room temperature X-ray diffraction analysis revealed that there exists two phases, i.e. Bi-(2223) and Bi-(2212), in addition to the impurity phases of (SrCa) 2Cu2O3, Sr2Ca2Cu7Oδ, Ca2PbO4, CaO, and WO. It was found that the crystallographic structure of all samples was orthorhombic. Lattice parameter values and the volume fraction of the (2223)-phase of the prepared samples were also calculated. The superconductivity transition temperature (Tc) for samples subjected to substitution with W NPs was found to be higher than that for the pure sample. The optimal value of W N...
A series of the superconducting materials with nominal composition Bi 1.6 Pb 0.4 Sr 2-y Ba y Ca 2... more A series of the superconducting materials with nominal composition Bi 1.6 Pb 0.4 Sr 2-y Ba y Ca 2-x Gd x Cu 3 O 10±δ with (0≤x≤0.5) and (0≤y≤0.3) were prepared by the conventional solid-state reaction method. The influence of gadolinium and barium substitution at Ca and Sr sites respectively, have been investigated by the X-ray diffraction (XRD), scanning electron microscopy (SEM) and dc electrical resistivity. Room temperature X-ray diffraction analysis revealed that there exists two phases i.e. Bi-(2223) and Bi-(2212). in addition to the impurity phases. It was found that the crystal structure was orthorhombic. Parameter values, the volume fraction of the (2223)-phase of prepared samples and their densities have been calculated. .
The Properties of photoconductive ultraviolet detector fabricated on CdO nanofilms were presented... more The Properties of photoconductive ultraviolet detector fabricated on CdO nanofilms were presented. The Cadmium Oxide (CdO) semiconducting transparent nanostructure film is deposited on glass and porous silicon substrates by spray pyrolysis. The structural and optical properties of the grown films are presented. The crystalline structure was studied by X-ray diffraction. The direct band gap of CdO nanofilm was found to be 3.4eV, comparing with that of the bulk CdO. The deposited CdO film was coated by nanosheet of polyamind polymer to improve the photoresponsivity of the detector.
In this work ,pure and doped(CdO)thin films with different concentration of V2O5x (0.0, 0.05, 0.1... more In this work ,pure and doped(CdO)thin films with different concentration of V2O5x (0.0, 0.05, 0.1 ) wt.% have been prepared on glass substrate at room temperature using Pulse Laser Deposition technique(PLD).The focused Nd:YAG laser beam at 800 mJ with a frequency second radiation at 1064 nm (pulse width 9 ns) repetition frequency (6 Hz), for 500 laser pulses incident on the target surface At first ,The pellets of (CdO)1-x(V2O5)x at different V2O5 contents were sintered to a temperature of 773K for one hours.Then films of (CdO)1-x(V2O5)x have been prepared.The structure of the thin films was examined by using (XRD) analysis..Hall effect has been measured in orded to know the type of conductivity, Finally the solar cell and the efficiency of the CdO:V2O5 cells have been studied.
In this work, using the spin coating method to create polyvinylidene fluoride (PVDF)/polyethylene... more In this work, using the spin coating method to create polyvinylidene fluoride (PVDF)/polyethylene oxide (PEO) thin films, the effects of nano-tungsten oxide (WO 2 ) doping were investigated. The novelty of this research lies in its investigation of varying weight concentrations of WO 2 nanoparticles (NPs) within the composite films. Comprehensive characterization techniques were employed, including structural analysis via X-ray diffraction (XRD), which revealed a clear and prominent peak in the XRD of the PVDF/PEO films, and the films' polycrystalline nature with tetragonal structures. The grain size was noted to increase with higher WO 2 NPs doping. Field emission scanning electron microscopy (FE-SEM) showed hexagonal-like α-phase PVDF crystals and uniform distribution of WO 2 NPs. Furthermore, Fourier-transform infrared spectroscopy (FTIR) confirmed the characteristics of PVDF/PEO and identified specific doping compounds, confirming successful incorporation. The optical transmittance spectra unveiled the films' optical band gap energy, optical transition types, and absorption characteristics, where novelty emerged as the band gap energy significantly increased from 3.0 eV to 3.64 eV with an increased WO 2 NPs weight doping percentage, signifying profound electronic structure modifications and potential applications in optoelectronics and sensors.
Journal of Wasit for Science and Medicine, Apr 7, 2020
By using a conventional solid-state reaction technique, a group of the superconducting samples wi... more By using a conventional solid-state reaction technique, a group of the superconducting samples with nominal composition Bi2-xPb0.3WxSr2Ca2Cu3O10±δ with (0≤x≤0.5) sintered at 840 ᵒ C for 140h in the air have been prepared. The effect substitution of tungsten nanoparticles on the physical properties of Bi sites was studied. X-ray diffraction (XRD) studies showed that all our samples are polycrystalline with orthorhombic structures and presence two phases: high-Tc phase (2223), low-Tc phase (2212) and an impurity phase Some impurities likeSr2Ca2Cu7Oδ, CaO and WO . In the prepared samples the lattice parameter values and the volume fraction of high-Tc phase are calculated. Electrical resistivity measurements show that the values of critical temperature Tc increase with tungsten content. The highest transition temperature, Tc, obtained for Bi2-xPb0.3WXSr2Ca2Cu3O10+δ composition was 191.8K with x=0.3.
Indian journal of forensic medicine and toxicology, Jan 25, 2020
Current research involves preparing cerium oxide nanoparticles using simple, environmental-friend... more Current research involves preparing cerium oxide nanoparticles using simple, environmental-friendly green synthesis approach via fresh green tea leaf extract (Camellia sinensis) as a capping and reducing agent, Ultraviolet-visible spectroscopy (UV-Vis.) is used to check the formation of nanoparticles by investigate the absorption peak and energy gap (E g ); Maximum absorption peak was around 295nm and E g was 4.2eV calculated using Planck's equation, X-Ray diffraction (XRD) analysis of Nano powder stated that Cerium Oxide has a cubic fluorite structure with face centered cubic (FCC) structure, blood serum glucose levels, liver functions after CeO 2 Nanoparticles treatment for rats were reported in this paper. Forty eight adult male rats were used and divided randomly into six groups each group has eight rats (n=8), Results stated that blood glucose levels, liver enzymes were increased in groups that injected by dexamethasone while considerably modified in rats administered by Cerium Oxide Nanoparticles.
The conventional solid-state reaction method was utilized to prepare a series of superconducting ... more The conventional solid-state reaction method was utilized to prepare a series of superconducting samples of the nominal composition Bi 2-x Pb 0.3 W x Sr 2 Ca 2 Cu 3 O 10+ with 0≤x≤0.5 of 50 nm particle size of tungsten sintered at 850 0 C for 140h in air . The influence of substitution with W NPs at bismuth (Bi) sites was characterized by the X-ray diffraction (XRD), scanning electron microscopy (SEM) and dc electrical resistivity. Room temperature X-ray diffraction analysis revealed that there exists two phases, i.e. Bi-( ) and Bi-( ), in addition to the impurity phases of (SrCa) 2Cu2O3 , Sr 2 Ca 2 Cu 7 O δ , Ca 2 PbO 4 , CaO, and WO. It was found that the crystallographic structure of all samples was orthorhombic. Lattice parameter values and the volume fraction of the ( )-phase of the prepared samples were also calculated. The superconductivity transition temperature (T c ) for samples subjected to substitution with W NPs was found to be higher than that for the pure sample. The optimal value of W NPs content in (Bi, Pb)-2223 system was found to be at x=0.3.
Zinc Oxide Nanoparticles have been prepared using a simple green synthesis method by green tea ex... more Zinc Oxide Nanoparticles have been prepared using a simple green synthesis method by green tea extract (Camellia sinensis) as a reducing and capping agent, XRD measurement of Nano powder stated that Zinc Oxide had a hexagonal wurtzite structure, UV-Vis. The maximum absorption peak was approximately 318 nm and the energy gap was nearly 3.8eV calculated using Planck's equation, blood serum sugar levels, liver function after ZnO NPs injection for rats was recorded. Forty-eight adult male rats were used and separated randomly into six groups of eight (n=8) rats in each group.Results stated that blood glucose levels, liver enzymes were increased in groups that injected by dexamethasone while considerably modified in rats administered by the first dose (100 mg/kg) of ZnO Nanoparticles while the other dose (300 mg/kg) hadn't any significant effects.
Current research involves preparing cerium oxide nanoparticles using simple, environmental- frien... more Current research involves preparing cerium oxide nanoparticles using simple, environmental- friendly green synthesis approach via fresh green tea leaf extract (Camellia sinensis) as a capping and reducing agent, Ultraviolet-visible spectroscopy (UV-Vis.) is used to check the formation of nanoparticles by investigate the absorption peak and energy gap (Eg); Maximum absorption peak was around 295nm and Eg was 4.2eV calculated using Planck’s equation, X-Ray diffraction (XRD) analysis of Nano powder stated that Cerium Oxide has a cubic fluorite structure with face centered cubic (FCC) structure, blood serum glucose levels, liver functions after CeO2 Nanoparticles treatment for rats were reported in this paper. Forty eight adult male rats were used and divided randomly into six groups each group has eight rats (n=8), Results stated that blood glucose levels, liver enzymes were increased in groups that injected by dexamethasone while considerably modified in rats administered by Cerium Ox...
The conventional solid-state reaction method was utilized to prepare a series of superconducting ... more The conventional solid-state reaction method was utilized to prepare a series of superconducting samples of the nominal composition Bi2-xPb0.3WxSr2Ca2Cu3O10+d with 0≤x≤0.5 of 50 nm particle size of tungsten sintered at 8500C for 140h in air . The influence of substitution with W NPs at bismuth (Bi) sites was characterized by the X-ray diffraction (XRD), scanning electron microscopy (SEM) and dc electrical resistivity. Room temperature X-ray diffraction analysis revealed that there exists two phases, i.e. Bi-(2223) and Bi-(2212), in addition to the impurity phases of (SrCa) 2Cu2O3, Sr2Ca2Cu7Oδ, Ca2PbO4, CaO, and WO. It was found that the crystallographic structure of all samples was orthorhombic. Lattice parameter values and the volume fraction of the (2223)-phase of the prepared samples were also calculated. The superconductivity transition temperature (Tc) for samples subjected to substitution with W NPs was found to be higher than that for the pure sample. The optimal value of W N...
A series of the superconducting materials with nominal composition Bi 1.6 Pb 0.4 Sr 2-y Ba y Ca 2... more A series of the superconducting materials with nominal composition Bi 1.6 Pb 0.4 Sr 2-y Ba y Ca 2-x Gd x Cu 3 O 10±δ with (0≤x≤0.5) and (0≤y≤0.3) were prepared by the conventional solid-state reaction method. The influence of gadolinium and barium substitution at Ca and Sr sites respectively, have been investigated by the X-ray diffraction (XRD), scanning electron microscopy (SEM) and dc electrical resistivity. Room temperature X-ray diffraction analysis revealed that there exists two phases i.e. Bi-(2223) and Bi-(2212). in addition to the impurity phases. It was found that the crystal structure was orthorhombic. Parameter values, the volume fraction of the (2223)-phase of prepared samples and their densities have been calculated. .
The Properties of photoconductive ultraviolet detector fabricated on CdO nanofilms were presented... more The Properties of photoconductive ultraviolet detector fabricated on CdO nanofilms were presented. The Cadmium Oxide (CdO) semiconducting transparent nanostructure film is deposited on glass and porous silicon substrates by spray pyrolysis. The structural and optical properties of the grown films are presented. The crystalline structure was studied by X-ray diffraction. The direct band gap of CdO nanofilm was found to be 3.4eV, comparing with that of the bulk CdO. The deposited CdO film was coated by nanosheet of polyamind polymer to improve the photoresponsivity of the detector.
In this work ,pure and doped(CdO)thin films with different concentration of V2O5x (0.0, 0.05, 0.1... more In this work ,pure and doped(CdO)thin films with different concentration of V2O5x (0.0, 0.05, 0.1 ) wt.% have been prepared on glass substrate at room temperature using Pulse Laser Deposition technique(PLD).The focused Nd:YAG laser beam at 800 mJ with a frequency second radiation at 1064 nm (pulse width 9 ns) repetition frequency (6 Hz), for 500 laser pulses incident on the target surface At first ,The pellets of (CdO)1-x(V2O5)x at different V2O5 contents were sintered to a temperature of 773K for one hours.Then films of (CdO)1-x(V2O5)x have been prepared.The structure of the thin films was examined by using (XRD) analysis..Hall effect has been measured in orded to know the type of conductivity, Finally the solar cell and the efficiency of the CdO:V2O5 cells have been studied.
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