Güncel Gönderiler: FEF, Fizik Bölümü Koleksiyonu
Toplam kayıt 337, listelenen: 281-300
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Enhanced efficiency of CdS/P3HT hybrid solar cells via interfacial modification
(Scientific Technical Research Council Turkey-Tubitak, 2019)The present paper examines the effects of surface modification of CdS with diverse dyes on fabricated CdS-based hybrid solar cells. the X-ray diffraction results showed that CdS thin films had a hexagonal phase with a ... -
Surface modification of CBD-grown CdS thin films for hybrid solar cell applications
(Elsevier Gmbh, 2019)The influences of interfacial modification by various dyes (Eosin-Y, D205, N719 and N3) on structural, morphological, optical and electrical properties of CdS-based hybrid solar cells are investigated. Structural properties ... -
A detailed research for determination of Bi/Ga partial substitution effect in Bi-2212 superconducting matrix on crucial characteristic features
(Elsevier Science Sa, 2019)This multidisciplinary study paves way to investigate the crucial of fundamental characteristic properties including the bulk density, electrical, superconducting, flux pinning mechanism, crystal structure quality and ... -
CZTS layers formed under sulfur-limited conditions at above atmospheric pressure
(Elsevier Sci Ltd, 2019)In this study CZTS thin films were grown by a two-stage process that involved sequential sputter deposition of metallic Cu, Zn, and Sn layers on Mo coated glass substrates followed by RTP annealing in a sulfur atmosphere ... -
Effect of annealing temperature on K-shell X-ray fluorescence parameters of zinc oxide thin films prepared by the sol-gel method
(Taylor & Francis Inc, 2019)Zinc oxide thin films were grown on a glass substrate by a sol-gel process using a spin-coating technique. the obtained thin films were annealed between 350 degrees C and 550 degrees C in 50 degrees C steps and were then ... -
Magnetic properties of the welded joined TSMG Y123+x wt% Y211 (x=20 and 30) bulk superconductors
(Elsevier, 2019)Although the welding techniques have been used to join for bulk YBCO superconductors with a sintered superconductor, similar technique as a Ag2O added bulk YBCO superconductor fabricated by melt-powder-melt-growth process ... -
Alloying and phase transformation in CdS/CdSe bilayers annealed with or without CdCl2
(Elsevier Sci Ltd, 2019)The present paper studies the structural, compositional, morphological and optical properties of thin CdS/CdSe stacks annealed in an inert atmosphere or subjected to a CdCl2 treatment. the bilayer stacks were fabricated ... -
Electronic transport and resonant tunneling properties of hyperbolic poschl-teller double-barrier structures
(Taylor & Francis Inc, 2019)The ballistic electron transport characteristics of hyperbolic Poschl-Teller double-barrier resonant tunneling structures are investigated. the transmission coefficient and the current density-voltage characteristic in ... -
Radiation shielding properties of mortars with minerals and ores additives
(Elsevier Sci Ltd, 2019)Incorporation of mineral and ores as fine aggregate additives was investigated for its effect on the neutron and gamma-ray shielding properties of cement mortar. Five mortar mixtures have been prepared with different ... -
Fabrication and characterization of Au/n-ZnO/p-Si/Al sandwich device with Sol-gel spin coating method
(Springer, 2019)ZnO thin films with the n-type properties were obtained on the p-Si substrates for multi-layered sandwich device depositing by sol-gel method. Au and Al were conducted on two side of hetero-junction by PVD technique. From ... -
Determination of optimum Er-doping level to get high transparent and low resistive Cd1-xErxS thin films
(Springer, 2019)Cd1-xErxS (x=0, 0.02, 0.04, 0.06, 0.08 and 0.10) thin films were produced by a chemical route on glass slides. the structural, morphological, optical and electrical properties of the grown samples were studied to obtain ... -
The influence of vacancy-induced local strain on the transport properties in armchair and zigzag graphene nanoribbons
(Iop Publishing Ltd, 2019)We investigate the transport properties of defected graphene nanoribbons with single C vacancy using non-equilibrium Green's function formalism within the tight-binding model approach. the insights derived from the analysis ... -
Enhanced magnetic levitation and guidance force in MgB2 bulks by synthetic engine oil immersion
(Springer, 2019)We have used Synthetic engine oil' as a rich easily accessible carbon source and investigated the effect of engine oil on the microstructure, critical current density (J(c)), vertical levitation force (F-z) and guidance ... -
Natural radioactivity in ceramic tiles and associated radiological hazards
(Ijrr-Iranian Journal Radiation Res, 2019)Background: the natural radioactivity levels in ceramic tiles produced in Turkey were determined and the related radiological hazards were assessed. Materials and Methods: the natural radioactivity levels (Ra-226, Th-232 ... -
Investigating XRF parameters and valance electronic structure of the Co, Ni, and Cu spinel ferrites
(Elsevier Sci Ltd, 2019)In the present study, K X-ray emission spectra of Cu, Ni, Co spinel ferrite (MFe2O4) alloys obtained with a HPGe detector by inducing 59.54 keV and 22.1 keV y gamma-rays emitted from 3 Ci Am-241 annular source and 40 mCi ... -
Growth of Cu2ZnSnS4 (CZTS) thin films using short sulfurization periods
(Iop Publishing Ltd, 2019)In this study CZTS thin films were grown by a two-stage process that involved sequential sputter deposition of metallic Cu, Zn, and Sn layers on Mo coated glass substrates followed by RTP annealing at 530 and 560 degrees ... -
Improved optical transparency of calcium-doped ZnO thin films
(Natl Inst Optoelectronics, 2019)ZnO thin films with various Ca-doping contents were produced by spray pyrolysis. X-ray diffraction results showed that all samples had a hexagonal structure. Morphological analysis indicated that all films had granular ... -
Comparison of plastic antineutrino detector designs in the context of near field reactor monitoring
(Elsevier Science Bv, 2019)We compare existing segmented plastic antineutrino detectors with our new geometrically improved design for antineutrino detection and light collection efficiency. the purpose of this study is to determine the most suitable ... -
Determination of natural radionuclides and some metal concentrations in human tooth samples in the Rize province, Turkey
(Taylor & Francis Ltd, 2019)The main purpose of this study was to identify the concentrations of naturally occurring radionuclides (Ra-226, Th-232 and K-40) and some metals (Fe, Ni, Cu, Zn, Pb and Cd) in tooth samples collected from humans living in ... -
Growth and characterization of Cu2SnS3 (CTS), Cu2SnSe3 (CTSe), and Cu2Sn(S,Se)(3) (CTSSe) thin films using dip-coated Cu-Sn precursor
(Springer, 2019)Ternary compounds Cu2SnS3, Cu2SnSe3 and Cu2Sn(S,Se)(3) thin films used in thin film solar cell applications were prepared at the first time by such a two-stage process that includes dip-coating of Cu-Sn precursors as ...