Güncel Gönderiler: Fizik Bölümü
Toplam kayıt 230, listelenen: 201-220
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Theoretical calculations of high-pressure phases of NiF2: An ab initio constant-pressure study
(MAIK NAUKA/INTERPERIODICA/SPRINGER, 2016)We have studied the structural properties of the antiferromagnetic NiF2 tetragonal structure with P4(2)/mnm symmetry using density functional theory (DFT) under rapid hydrostatic pressure up to 400 GPa. For the exchange ... -
Optical and electrical characteristics of thermally evaporated Cu0.5Ag0.5InSe2 thin films
(ELSEVIER SCIENCE SA, 2017)In this study, optical and electrical characteristics of the Cu0.5Ag0.5InSe2 (CAIS) polycrystalline thin films were investigated. They were deposited on soda lime glass substrates with the evaporation of pure elemental ... -
Ab Initio Molecular Dynamics Simulation of Pressure-Induced Phase Transition in MgS
(MAIK NAUKA/INTERPERIODICA/SPRINGER, 2017)Pressure-induced phase transition in MgS is studied using a constant pressure ab initio molecular dynamics method, and a solid evidence of existence of its high-pressure phase is provided. As predicted by total energy ... -
Investigation of precursor sequence and post-annealing effects on the properties of Cu2SnZnSe4 thin films deposited by the elemental thermal evaporation
(IOP PUBLISHING LTD, 2017)Cu2ZnSnSe4 (CZTSe) thin films were deposited onto soda lime glass substrates by thermal evaporation using the pure elemental sources. The influence of the sequential deposition order of Zn and Sn precursor layers for ... -
Study on the electrical properties of ZnSe/Si heterojunction diode
(SPRINGER, 2017)ZnSe thin film is e-beam evaporated on monocrystalline p-Si to fabricate n-ZnSe/p-Si heterojunction. The electrical properties were investigated by current-voltage (I-V), capacitance-voltage (C-V) and conductance-voltage ... -
Analysis of current conduction mechanism in CZTSSe/n-Si structure
(SPRINGER, 2018)In this study, Cu2ZnSn(S,Se)(4) (CZTSSe) thin films were deposited by the single step thermal evaporation process using the sintered powder of CZTSSe on soda lime glass (SLG) and Si wafer substrates. The structural, optical, ... -
Lattice dynamic properties of Rh2XAl (X=Fe and Y) alloys
(ELSEVIER SCIENCE BV, 2018)The electronic band structure, elastic and vibrational spectra of Rh2FeAl and Rh2YAl alloys were computed in detail by employing an ab-initio pseudopotential method and a linear-response technique based on the density-functional ... -
Modelling of water transport through mixed-ion conducting dense ceramics
(WILEY, 2018)This study develops and demonstrates a model that characterizes defect transports, responsible for water transport within dense ceramics, and calculates the diffusion coefficients for those defects. The multi-species mass ... -
Investigation of carrier transport mechanisms in the Cu-Zn-Se based hetero-structure grown by sputtering technique
(CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS, 2018)In this paper, we present results of the electrical characterization of n-Si/p-Cu-Zn-Se hetero-structure. Sputtered film was found in Se-rich behavior with tetragonal polycrystalline nature along with (112) preferred ... -
INVESTIGATION ON DEVICE CHARACTERISTICS OF n-CdS/p-Ag(Ga-In)Te-2 HETEROJUNCTION DIODE
(WORLD SCIENTIFIC PUBL CO PTE LTD, 2018)This work indicates the device properties of polycrystalline p-AgGaInTe2 (AGIT) thin films deposited on bare and ITO-coated glass substrates with thermal evaporation technique. Device characteristics of n-CdS/p-AGIT ... -
Temperature-Dependent Electrical Characteristics of Au/Si3N4/4H n-SiC MIS Diode
(SPRINGER, 2018)Electrical characteristics of the Au/Si3N4/4H n-SiC metal-insulator-semiconductor (MIS) diode were investigated under the temperature, T, interval of 160-400 K using current-voltage (I-V), capacitance-voltage (C-V) and ... -
Computational investigations of mechanical and dynamical properties of gold-based compounds (X3Au, X = Ti, Zr and V)
(ELSEVIER SCIENCE BV, 2018)The structural, elastic, electronic and phonon properties of X3Au (X = Ti, Zr and V) compounds in the A15 structure were obtained in the framework of the density functional theory (DFT) within the generalized gradient ... -
Computational investigations of mechanic, electronic and lattice dynamic properties of yttrium based compounds
(WORLD SCIENTIFIC PUBL CO PTE LTD, 2018)Electronic, mechanic and lattice dynamic properties of yttrium-based compounds, X3Y, where X = Pd, Pt and Rh were investigated using the density functional theory. The electronic band calculations demonstrated that X3Y ... -
FT-IR and Raman Spectroscopy and Computation of 5-Methylfurfural
(SPRINGER, 2018)5-Methylfurfural (5MF) was studied by vibrational (IR and Raman) spectroscopy and computational methods (DFT/B3LYP&MP2). FT-IR and FT-Raman spectra in KBr (at room temperature) were collected. The Gaussian 09 and Spartan ... -
Investigations of Structural, Elastic, Electronic and Thermodynamic Properties of X2TiAl Alloys: A Computational Study
(WALTER DE GRUYTER GMBH, 2018)First-principle calculations have been adopted in order to reveal and deeply understand the structural, electronic, elastic, thermodynamic, and vibrational properties of full-Heusler X2TiAl (X = Au, Ru, and Zr) alloys in ... -
The Role of Metal Catalyst on Water Permeation and Stability of BaCe0.8Y0.2O3-delta
(KOREAN ELECTROCHEMISTRY SOC, 2018)Perovskite type ceramic membranes which exhibit dual ion conduction (proton and oxygen ion conduction) can permeate water and can aid solving operational problems such as temperature gradient and carbon deposition associated ... -
Theoretical investigations of elastic and thermodynamic properties of LiXH4 compounds for hydrogen storage
(PERGAMON-ELSEVIER SCIENCE LTD, 2019)The clean and environmentally friendly energy demand increases rapidly over the years. Hydrogen has been recognised as one of the best options to satisfy this demand. Utilisation of hydrogen as an energy carrier requires ... -
Frequency effect on electrical and dielectric characteristics of In/Cu2ZnSnTe4/Si/Ag diode structure
(SPRINGER, 2019)In/Cu2ZnSnTe4/Si/Ag diode structure was fabricated by sputtering Cu2ZnSnTe4 (CZTTe) thin film layer on the Si layer with In front contact. The frequency dependent room temperature capacitance and conductance measurements ... -
Temperature dependence of electrical properties in In/Cu2ZnSnTe4/Si/Ag diodes
(INDIAN ACAD SCIENCES, 2019)Cu2ZnSnTe4 (CZTTe) thin films with In metal contact were deposited by thermal evaporation on monocrystalline n-type Si wafers with Ag ohmic contact to investigate the device characteristics of an In/CZTTe/Si/Ag diode. The ... -
Investigation of structural, electronic, elastic and phonon properties of cubic spinel ZnM2O4(M = Co, Rh and Ir) compounds
(ELSEVIER SCIENCE BV, 2019)The results obtained from ab initio calculations on ZnM2O4 (M = Co, Rh and Ir) compounds have been reported. The elastic constants, Bulk, Shear and Young modulus, and Poisson's ratios of the compounds are presented. In ...
