Search
Now showing items 1-10 of 43
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 ...
Further optical properties of CdX (X¼ S, Te) compounds under quantum dot diameter effect: Ab initio method
(Elsevier Ltd., 2012-09)
For energy band calculations, the indirect energy gap (G X) is calculated using density functional theory
(DFT) of the full potential-linearized augmented plane wave (FP-LAPW) method as implemented in
WIEN2K code. The ...
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 ...
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 study of the structural, electronic structure, fermi surface, electronic charge density and optical properties of the of LnVO4 (Ln= Sm, Eu, Gd and Dy)
(Electrochemical Science Group (ESG), 2013-08)
We present first-principles calculations of the electronic structure, Fermi surface, electronic charge density and optical properties of LnVO4(Ln= Sm, Eu, Gd and Dy) based on density-functional theory using the local density ...
Optical properties of Si quantum dot potential under pressure effect
(Trans Tech Publications, Switzerland., 2012)
Further study of the quantum dot potential under hydrostatic pressure for Si is presented. This potential has been calculated by means of our recent empirical model. The indirect energy gap (Γ-X) is calculated using the ...
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) ...
Investigated optical studies of Si quantum dot
(Elsevier Ltd., 2011-09)
Further study of the quantum dot potential for Si is presented. This potential has been calculated by means of our recent empirical model. The indirect energy gap (Γ-X) is calculated using the full potential-linearized ...
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) ...
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 ...