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您的检索式：作者名="Mohd.Shkir"
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| 1 | Enhancement in photovoltaic properties of Nd:SnS films prepared by low-cost NSP method显示文摘The inner transition metal(ITM) neodymium(Nd)-doped tin sulfide(Nd:SnS) thin films with various Nd concentrations were coated by nebulizer spray pyrolysis(NSP) technique at 350℃. All the coated films were analyzed for their structural, optical and photoelectrical properties. X-ray diffractometer(XRD) study showed(111) direction as the highly preferred orientation with orthorhombic crystal structure for all the films. The intensity of the peaks was found to increase until 5 at% Nd doping and then reduced for higher(7 at% Nd) doping concentration. Atomic force microscopic(AFM) images of the films proclaimed an increase in the surface and line roughness of the films by increasing Nd concentrations.Optical analysis on the films showed a variation in energy gap from 2.05 to 1.69 eV when the doping concentration increased from 0 at% to 7 at%. At 5 at% Nd doping, the photoluminescence(PL) spectra displayed a single strong emission peak at 723.1 nm with enhanced intensity corresponding to near-band-edge emission. All the SnS thin films exhibited p-type behavior with the lowest resistivity of ~ 4.311 Ω·cm and high carrier concentrations of ~ 1.441 × 10^(17)cm^(-3) for 5 at% Nd doping level as observed from Hall effect studies. Furthermore, fluorinedoped tin oxide(FTO)/n-CdS/p-Nd:SnS hetero-junction solar cells were prepared and the current–voltage curve in dark and light condition was obtained for the device. An efficiency of 0.135% was observed for the solar cell fabricated with 5 at% Nd-doped SnS thin film. | S.Sebastian I.Kulandaisamy A.M.S.Arulanantham S.Valanarasu A.Kathalingam Mohd.Shkir Salem AlFaify | 2022 | Rare Metals2022，41，5： | 1 |
| 2 | Microwave-assisted synthesis of Mg:PbI2 nanostructures and their structural,morphological,optical,dielectric and electrical properties for optoelectronic technology显示文摘This work reports the cost-effective growth of Mg:PbI2 nanostructures with 0,1,2.5 and 5.0 wt.%Mg doping concentrations.Structural,vibrational,morphological properties are analyzed using x-ray diffraction(XRD),Raman spectroscopy and scanning electron microscopy(SEM).XRD and Raman studies confirm the monophasic hexagonal system of Mg:PbI2,and no additional impurity peaks are detected.The Scherrer formula is used to determine sizes of crystallites to be in the range of 47-52 nm.EDX/SEM e-mapping analyses confirm the incorporation of Mg in PbI2 matrix and its uniform distribution throughout the sample.The hexagonal nanosheet-and nanoplate-like morphologies are detected in SEM images for pure and Mg-doped PbI2.An optical band gap of nanostructures is obtained from Tauc’s relation to be in the range 3.0-3.25 eV.Dielectric and electrical properties are found in significant enhancement as Mg doping in PbI2 matrix,also the conduction mechanism is discussed. | Mohd.Shkir Ziaul Raza Khan T Alshahrani Kamlesh VChandekar M Aslam Manthrammel Ashwani Kumar S AlFaify | 2020 | Chinese Physics B2020，29，11： | 0 |
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