[PDF] Top 20 Effect of carbon doping on electronic structure and optical properties of ZnO clusters

... doped clusters. A study of the optical band gap change for ZnO cluster and C-doped ZnO clusters has been ...The optical gap and the optical spectra depend on the geometry ... See full document

... Optical absorption spectra of the films in spectral range of (300-900 nm) were recorded by using UV–visible spectrophotometer. The analysis of the dependence of absorption coefficient on photon energy in the high ... See full document

... Indium doping has improved the conductivity of the ZnO film by up to two ...indium doping is graphically presented in Figure ...indium doping concentration. Similar effect has been ... See full document

... citation, electronic transmission associate and macroscopic visible optical properties, revealing the macroscopic dielectric properties of the micro ...the optical properties of ... See full document

... the effect is intrinsic to the ...doped ZnO indicate that these materials are very sensitive to the fabrication and processing ...the effect of Cu- and Ni co-doping on the weakest ... See full document

... crystallographic structure, electronic properties and optical properties of ZnS with Ag doping concentrations of 0%, ...Appropriate doping can effectively change its ... See full document

... the doping thin films were decreasing as the doping ratios thus might be due to the increase in doping concentration which affects, the crystal structure and change the value of film ... See full document

... electrical properties, which enjoy broad application prospects in microelectronics and medicine and other ...and electronic properties of pure (5, 5) and (5, 0) SiNTs with the first principles of ... See full document

... single-walled carbon nanotubes (SWCNTs) in the early 1990s [1], the research on tubu- lar nanostructures has attracted increasing interest be- cause their unique structures can provide some unique ... See full document

... hexagonal ZnO. For all the compositions formation of only ZnO wurtzite phase is ...doped ZnO nanoparticles of different compositions are ...lower doping concentration ... See full document

... unique properties such as direct wide band gap ...these properties it has been studied extensively for making optical and elec- tronic devices [1-3] like: light emitting diodes, solar cells, ... See full document

... the ZnO lattice, and the red shift was appeared in PL spectra for doped nanoparticles compared with undoped ...lanthanum doping concentration plays an important role in tuning the size, band gap and ... See full document

... [2–5]. ZnO was found various technological applications such as solar cells [1, 2], active material for highly sensitive humidity and oxygen gas sensors [3], transparent electrodes for flat –panel displays [4], ... See full document

... self-energy was not considered in this calculation because the shift of the theoretical peak positions from those of the experimental spectra is small ( ⬍ 0.3 eV). From the energy bands and the TB-LMTO eigenvectors, we ... See full document

... crystal structure of the prepared ZnO nanowires was analyzed using X-ray diffraction (XRD, D/max- 2200/PC, ...the ZnO nanowires were recorded using an Ar + ion laser as the excitation ...the ... See full document

... It is also interesting to discuss at the end of the band structure study the effective masses of electrons and holes, which are important for the excitonic compounds. We have calculated the effective masses of ... See full document

... crystal structure, in which literature has established precedence for a relationship [13, ...F doping content has a relatively larger influence on the optical and electrical properties of ... See full document

... of ZnO dispersed onto activated carbon (ZnO/AC) is ...of ZnO/C materials was performed using XRD, SEM, gas sorption analyzer and diffuse reflectance UV-Visible ...that ZnO dispersion ... See full document

... The effect of an impurity in an amorphous semiconductor material may be widely different, depending on the conduction mechanism and the structure of material ...the optical and electrical ... See full document

... The XRD patterns of glass samples were found to show no discrete or continuous sharp peaks but broad halo at around 25°– 35°, which reflected the characteristic of amorphous glass structure. This indicates the ... See full document