band-to-band absorption coefficient
Effect of heat treatment temperature and time on sound absorption coefficient of Larix kaempferi wood
... sound absorption coefficients of porous materials, such as wood, are proportional to the porosity and roughness of the internal pore ...low-frequency band range, the waves in porous materials are propagated ...
5
Influence of Annealing Temperature on Optical and Electrical Properties of Cu2ZnSnS4 (CZTS) thin Films Deposited by Sputtering Method from a Single Quaternary Target
... the absorption coefficient, refractive index, extinction coefficient and optical band gap energy of the ...optical band gap energies ranging between 1.5 eV and 2.4 eV. The optical ...
6
Effect of the Sulfur Concentration on the Optical Band Gap Energy and Urbach Tail of Spray-Deposited ZnS Films
... The band gap energy was computed through the absorption coefficient and found that by increasing sulfur concentration up to three times of zinc content in the ZnS lattice, the transmittance and ...
7
Structural and optical modeling of electro deposited CuInSe2 thin films
... (bandwidth, absorption coefficient, diffusion length of minority carriers) specifically related to photovoltaic ...cells.The absorption coefficient and the band-gap energy are ...
6
Structural and Optical Properties of Cu2Zn1-xCdxSnS4 Thin Film as an Absorber Material for Solar Cell
... high absorption coefficient ( > 104 ...optical band near 3.6 eV that gives a higher energy gap of CZTS. The optical band gaps of CZTS film and CZCTS are shown in Figure ...The ...
5
DC Conductivity and Spectroscopic Characterization of Poly (o toluidine) Doped with Binary Dopant ZrOCl2/AgI
... optical band gap, absorption ...indirect band gaps, which change with change in dopants ratio. Absorption coeffi- cient and extinction coefficient also change with change in dopants ...
9
Analysis on Photo Emission and Absorbing Spectrum on GaN Sample by Finite Difference Time Domain Method
... The absorption coefficient was originated using the reflectance data and the confused multilayer representation by Wemple ...the absorption coefficient data to come across the optical ...
6
Electronic and Optical Properties of GaAs Armchair Nanoribbons: DFT Approach
... gap, band structure), and optical (Refractive index, Absorption coefficient) properties of armchair GaAs nanoribbons, taking into consideration four different widths (N: 4, 8, 12, and 16) of ...
10
Optical And Dielectric Properties Of Cuo-B2O3 Glasses
... as absorption coefficient, optical dielectric constant, refractive index, optical energy gp, constant β, measure of extent of band tailing, infinitely high frequency dielectric constant and ratio of ...
6
Electronic Modeling and Optical Properties of CuIn0 5Ga0 5Se2 Thin Film Solar Cell
... the band structure is calculated without and with the spin-orbit coupling (NonSOC and SOC), ...of band structure. It affects the curvature of energy band strongly, especially for the valence bands ...
6
Influence of Thickness on Optical and Sensing Properties of MgO Thin Films Deposited by RF Magnetron Sputtering
... optical band gaps of the films are calculated from the transmittance ...The absorption coefficient (α) is calculated using the equation, [13]: ...
5
Numerical simulation of sound absorption coefficient of wood perforated wall panel with uniform small geometric patterns
... sound absorption coefficient, α n at 250Hz to 500Hz frequency range is very high and almost constant followed by a decay trend at frequency region between 1kHz to ...
25
Growth and characterization of highly mismatched GaN1-xSbx alloys
... agreement with the value extrapolated from the position of the Sb level at 0.9 eV below the VBM in GaAs. 13 However, it is important to note that the CL peak at 2.2 eV coincides with the commonly observed “yellow” ...
8
Phenylarsenic(III) Derivatives of Bifunctional Tetradentate Ligands : Synthesis and Characterization
... A comparative study of the IR spectra of the Schiff bases with their corresponding organoarsenic (III) derivatives shows disappearance of SH absorption band: (observed as a broad band [r] ...
6
N,N'-bi-(5-methyl-methylsalicylidene)-2,2-dimethylpropane-1, 3-diamine palladium(ii): catalyst for heck reaction
... the absorption band for C=N stretching mode was shifted from 1612 cm -1 in free ligand to the strong and sharp absorption band at 1599 cm -1 in the complex indicating that the nitrogen atom is ...
7
Ellipsometric study of optical transitions in Ag1−xInx alloys
... L3→L’2(EF) transition, 4.03 eV for pure Ag, shifts to higher energies, while that of theL’2(EF)→L1 transition, 3.87 eV for pure Ag, shifts to lower energies. This is only partly attributable to the rise of the Fermi ...
8
Applications of Spectrally Resolved Photoluminescence in Silicon Photovoltaics
... The micro-PL spectroscopy system employed in this study is a Horiba T64000 equipped with a confocal micro- scope. The incident laser beam was focused into a spot of about 1 μm in diameter on the samples using a 50× ...
163
Assessment of inbreeding by DNA fingerprinting: development of a calibration curve using defined strains of chickens.
... group coefficient bands scored scored per chicken frequencyb frequency' Band sharing ing No. of different Average No. ' Calculated from the band frequencies as indi[r] ...
5
High spectral resolution ozone absorption cross-sections – Part 1: Measurements, data analysis and comparison with previous measurements around 293 K
... our absorption cross-sections and other relevant datasets are shown in ...Our absorption cross-sections are slightly lower than all other datasets, but this difference is within the experi- mental error ...
16
Optical Properties of TiO2 Nanostructure due to the Transformation from Cauliflower to Tablet-like Structure
... shift very much corresponds to the shift of absorption spectra and band gap. Most importantly, we did not observe any full width half maxima (FWHM) change of such spectra. So, there is no intensity ...
8