Browsing School of Materials Engineering (Articles) by Subject "Optical properties"
Now showing items 1-20 of 22
-
An ab initio density functional study of the optical functions of 9-Methyl-3-Thiophen-2-YI-Thieno [3,2e] [1,2,4] Thriazolo [4,3c] Pyrimidine-8-Carboxylic Acid Ethyl Ester crystals
(Elsevier B.V., 2012-09)An ab initio investigation of the optical constants of 9-Methyl-3-Thiophen- 2-YI-Thieno [3,2e] [1,2,4] Thriazolo [4,3c] Pyrimidine-8-Carboxylic Acid Ethyl Ester crystal is performed within a framework of local density ... -
Density functional theory calculation of the optical properties and topological analysis of the electron density of MBi2B 2O7 (M = Ca,Zn) compounds
(American Institute of Physics, 2013-02)The topology of the electron density for congruent melting oxyborate Bi2ZnOB2O6 and CaBi2B 2O7 is studied in light of the theory of atoms in molecules. All the electron density critical points in the unit cell are ... -
Density of electronic states and dispersion of optical functions of defect chalcopyrite CdGa2X4 (X = S, Se): DFT study
(Elsevier Limited, 2013)A density functional theory (DFT) based on full potential linear augmented plane wave (FPLAPW) was used for calculating the electronic structure, charge density and optical properties of CdGa2X4 (X = S, Se) compounds. Local ... -
Density of states, optical and thermoelectric properties of perovskite vanadium fluorides Na₃VF₆
(Elsevier/NORTH-HOLLAND, 2014)The electronic structure, charge density and Fermi surface of Na₃VF₆ compound have been examined with the support of density functional theory (DFT). Using the full potential linear augmented plane wave method, we employed ... -
DFT calculation of the electronic and optical properties of Ag 2PdO2 from X-ray and neutron crystallographic data
(Elsevier B.V., 2013)Electronic and optical properties of ternary silver palladium oxide (Ag2PdO2) are investigated using density functional theory. Two different possible approximations for the exchange correlation potentials were employed. ... -
Electronic band structure and optical properties of titanium oxyphosphates Li0.50Co0.25TiO(PO4) single crystals: An ab-initio calculations
(Elsevier Inc., 2011-08)From the refined atomic positions obtained by Belmal et al. (2004) using X-ray diffraction for Li0.50Co0.25TiO(PO4), we have performed a structural optimization by minimizing the forces acting on the atoms keeping the ... -
Electronic structure, Fermi surface and optical properties of metallic compound Be₈(B₄₈)B₂
(Elsevier/NORTH-HOLLAND, 2014-02)The band structure, density of states, electronic charge density, Fermi surface and optical properties for B₈(Be₄₈)B₂ compound has been investigated in the support of density functional theory (DFT). The atomic positions ... -
Electronic structure, optical and thermoelectric transport properties of layered polyanionic hydrosulfate LiFeSO₄OH: Electrode for Li-ion batteries
(Elsevier, 2014)Theoretical analysis of electronic structure and optical properties of LiFeSO₄OH, using the full-potential linearized augmented plane waves (FPLAPW), on the basis of density-functional theory (DFT), with in the local density ... -
Evidence of Coulomb correction and spin-orbit coupling in rare-earth dioxides CeO2, PrO2 and TbO2: An ab initio study
(Elsevier B.V., 2012-04)The current study investigates the structural, elastic, electronic and optical properties of CeO 2, PrO 2 and TbO 2 using the full potential (linearized) augmented plane wave plus local orbital method within the WuCohen ... -
First principle study of electronic structure, chemical bonding and optical properties of 5-azido-1H-tetrazole
(Electrochemical Science Group (ESG), 2013)First principle calculations were performed to investigate the electronic band structure, density of states, charge density and optical properties of 5-azido-1H-tetrazole. The calculated band structure shows that the ... -
The influence of the lattice relaxation on the optical properties of GaNxAs1-x alloys
(Elsevier Ltd., 2013-04)We have investigated the optical properties of the ternary alloys GaNxAs1-x (x=0.25, 0.5 and 0.75) without (we call it as case 1) and with (case 2) the lattice relaxation, using the full potential-linearized augmented plane ... -
Influence of varying Germanium content on the optical function dispersion of Fe 2MnSi xGe 1-x: An ab initio study
(Elsevier B.V., 2013-01)The optical dielectric functions of Fe 2MnSi 1-xGe x alloys for selected concentrations (x=0.0, 0.25, 0.5, 0.75 and 1.0) were investigated. The ferromagnetic Fe 2MnSi xGe 1-x is semiconducting with optical band gaps 0.507, ... -
Morphology, analysis and properties studies of CdS nanostructures under thiourea concentration effect for photovoltaic applications
(Electrochemical Science Group, 2013-08)CdS nanostructures are prepared by sol-gel spin coating method using different thiourea concentrations. The thiourea concentration effect for CdS nanostructures deposited on quartz substrate is studied. The CdS nanostructures ... -
Optical and photoconductivity spectra of novel Ag 2In 2SiS 6 and Ag 2In 2GeS 6 chalcogenide crystals
(Elsevier B.V., 2012-06)Complex spectral studies of near-band gap and photoconductive spectra for novel Ag 2In 2SiS 6 and Ag 2In 2GeS 6 single crystals are presented. The spectral dependences of photoconductivity clearly show an existence of ... -
Photothermal poling of glass complexes Ag2S–Ga2S3–P2S5
(Elsevier Ltd., 2013-10)The studies of the dc-electric field induced second harmonic generation (SHG) for fundamental wavelength of the Ag2S–Ga2S3–P2S5 using nanosecond Er:glass laser at wavelength 1540 nm and elevated temperatures (thermal poling) ... -
Shift of band gap from direct to indirect and optical response of lif under pressure
(World Scientific Publishing Co. Pte Ltd, 2013-04)We hereby are reporting the transition pressure at which lithium fluoride (LiF) compound transforms from direct band gap to indirect band gap insulator on the basis of FP-LAPW calculations. The fundamental band gap of LiF ... -
Single-crystal oxoborate (Pb 3O) 2(BO 3) 2WO 4: Growth and characterization
(Elsevier Ltd, 2012-09)An oxoborate, (Pb 3O) 2(BO 3) 2WO 4, has been prepared by solid-state reaction methods below 620°C. Single-crystal XRD analysis shows that it crystallizes in the orthorhombic group Cmcm with a = 18.480(4) , b = 6.3567(13) ... -
Structural, elastic, electronic and optical properties of Cu3TMSe4 (TM = V, Nb and Ta) sulvanite compounds via first-principles calculations
(American Scientific Publishers, 2013-01)The structural and optoelectronic properties of the cubic Cu3TMSe4 (TM = V, Nb and Ta) sulvanite compounds have been calculated using a full-potential augmented plane wave plus local orbitals (FP-APW+lo) method within the ... -
Structural, elastic, thermal, electronic and optical properties of Ag₂O under pressure
(Elsevier, 2014-02)In present paper, the structural, elastic, thermal, electronic, optical properties at ambient and high-pressure study of Ag₂O are performed using the full-potential linearized augmented plane wave (FP-LAPW) method within ... -
Theoretical investigation for Li2CuSb as multifunctional materials: Electrode for high capacity rechargeable batteries and novel materials for second harmonic generation
(Elsevier B.V., 2011-07-28)Based on the first-principles electronic structure calculations, we predict that Li2CuSb should be good electrode materials for high capacity rechargeable batteries and novel materials for second harmonic generation. This ...