Optical absorption spectra
Calculating optical absorption spectra for large systems using linear scaling density functional theory
... of optical absorption spectra, often only lower energy bound states are required, as many of the interesting features in optical spectra are transitions between bands close to the gap ...
13
One dimensional silver nanostructures on single wall carbon nanotubes
... The optical absorption spectrum of the SWCNT dis- persion does not exhibit significant absorption above 400 nm, although considerable fine structure can be observed within the noise level of the ...
9
Electronic properties control of super growth SWCNT with methylene blue dye adsorption
... and spectra were taken at three different places on the surface of each sample for better ...for optical absorption measurement, where the SWCNT and MB-adsorbed SWCNT dispersions were coated on ...
7
New procedure to synthesize silver nanoparticles and their interaction with local anesthetics
... The optical absorption spectra, given in Figure 5 for the wavelength range from 350 to 800 nm, show the effect of adding the volumes (given in the figures, in milliliters) of anesthetic solutions to ...
8
Spectroscopic Studies on Znf2-Pbo-P2o5 Glasses Containing Pr3+ Ions
... the optical absorption spectra give some information regarding the coordination number of the Pr3+ ions with oxygen in amorphous ...the absorption transition of 3H4 3P0 (20700 cm-1) of Pr3+ ...
7
Influence of water content in mixed solvent on surface morphology, wettability, and photoconductivity of ZnO thin films
... ture, optical absorption spectra, and WCA of ZnO thin films, which are grown in solutions with different DI water contents as solvents, were measured by SEM, XRD, UV-Vis spectrophotometer, and ...
8
Optical Properties of Dy3+ Doped Zinc Boro-Phosphate Glasses for Photonic Applications
... the optical absorption spectra, Nephelauxetic ratios and bonding parameter values have been calculated using the expressions reported in the literature [6] to study the nature of the Dy 3+ -ligand ...
5
Synthesis and Characterization of Gold-Titanium-Mesoporous Silica Nanomaterials
... The absorption spectra of Au-Ti-MPS were measured by using a UVIKON 923 Double Beam UV-visible spectrophotometer and thermogravimetry analysis (TGA). Nitrogen adsorption isotherm was measured and the pore ...
11
N,N Dimethyl 4 (pyren 1 yl)aniline
... Electron donor acceptor molecules play an important role in the understanding of charge transfer processes. In the past decades, in order to gain more insight into electron transfer processes, extensive studies have been ...
8
A BSTRACT Nd 3+ doped nanotitania are successfully prepared by wet chemical synthesis method. Samples were analyzed by a variety of
... FTIR, absorption and emission spectrometer to investigate the spectroscopic properties of doped ...the optical properties of Nd 3+ ions embedded in TiO2 and compare it with optical properties of ...
5
Biosynthesis of luminescent CdS quantum dots using plant hairy root culture
... dots optical properties such as specific absorption and luminescent spectra, an ellipsoid or a spherical shape as well as the particle size distribu- tion ranging from ...
7
Optical and Electrical Properties of Vacuum Evaporated Sexithiophene Thin Films
... electron-hole pairs bound by Coulomb attractive interaction, the creation yield of free carriers resulting from ionization of photogenerated excitons is strongly dependent on the effective applied field as described by ...
8
Kinetic Study of the Effect of Plasticization on Photodegradation of Polystyrene Solid Films
... The sample of polystyrene (PS) was supplied by Aldrich Chem. Co., with (Mw = 212,400) and was used with- out further purifications. Only spectroscopic grade dichloroethane (DCE) was used in casting of solid films, and ...
17
RP-HPLC-DAD method for simultaneous determination of desmedipham, phenmedipham and ethofumesate in a pesticide formulation
... UV spectra of these active components in methanol/water mixture (60/40, V/V), show that they have a band with absorption maximum at 235 nm for desmedipham and phenmedipham, and 225 nm for ethofumesate ...
8
Nickel Antimony Sulphide Thin Films for Solar Cell Application: Study of Optical Constants
... the optical transmission and reflectance of thin films based on their thickness ...the optical constants like refractive index, absorption coefficient, extinction coefficient and electrical ...
8
Development of AlGaAs /GaAs/ AlGaAs Step Quantum well to produce Tunable Photo Detector and Electro Absorption Modulator for noise reduction
... of absorption coefficient which is important in the development of Tunable Photo Detector and Electro-Absorption ...with absorption co-efficient as a function of external bias across the ...electro ...
9
NiS/CdS Core-shell Embedded Polyaniline Composite: Synthesis and Characterization
... The PL spectra for NiS, CoS, CdS, NiS:Co, NiS:Co/CdS core-shell particles and NiS:Co/CdS- Pani are shown in Fig.4 at an excitation wavelength of 300 nm. The PL spectrum of NiS (Fig.4a) shows the blue band at 431 ...
8
Whispering Gallery Mode Emission from a Composite System of CdTe Nanocrystals and a Spherical Microcavity
... Because of the high quality factor of MF microspheres and the very narrow WGM peaks, spherical microcavities are very promising systems for the design of an optically pumped microlaser emitting at room temperature ...
5
Nonlinear Coefficient Determination of Au/Pd Bimetallic Nanoparticles Using Z Scan
... susceptibility, the most popular is the Z-scan method. Since its introduction in 1989 [23], this technique has gained importance due to its simplicity compared to other techniques used to measure the nonlinear refraction ...
6
Insights from Unsupervised Clustering and Composite Spectral Analysis Into the Physical Properties Driving Emission and Absorption in Quasar UV/Optical Spectra
... In the remainder of this thesis, we work in the rest-frame UV regime focusing on questions related to the role of the ionizing SED in the formation and observed properties of quasar winds. The wind model –invoked as the ...
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