The Research of the Energy Band Structure and Chemical Bond on the Polyacetylene Including Transition Metal ──Ⅰ.The Metal in the Main Chain Influences the Energy Band Structure of the Polyacetylene
The Research of the Energy Band Structure and Chemical Bond on the Polyacetylene Including Transition Metal ──Ⅰ.The Metal in the Main Chain Influences the Energy Band Structure of the Polyacetylene
The Research of the Energy Band Structure and Chemical Bond on the Polyacetylene Including Transition Metal ──Ⅰ.The Metal in the Main Chain Influences the Energy Band Structure of the Polyacetylene
The principle of operation of a semiconductor gas sensor of resistive type is considered, and main band structure parameters sensitive to the gas phase composition are determined.
Depending on the wave intensity and polarization, such a band structure describes both bound particle-wave states (capture) and states in the continuous spectrum.
The results of experimental investigations and computer modeling of the magneto-oscillations of the capacitance of surface layers with a two-dimensional gas in the narrow-gap semiconductor HgCdTe with direct and inverted band structure are compared.
A model of the energy band structure of iron borate (FeBO3) is proposed that combines a one-electron description of the sp states of boron and oxygen with a many-electron description of the d states of iron.
The electron structure of ZrO2 is experimentally determined using X-ray and UV photoelectron spectroscopy, and the electron energy band structure is theoretically calculated using electron density functional method.
This is explained, first, by special features of the energy band structure and, second, by the form of the energy dependence of the density of states in the conduction band of LiF crystals.
he molecular structures of pyrolyzed products of phenol-formaldehyde resins,that is,the systems of different molecule widths of polyacene have been investigated by using quantum chemistry semiempirical MNDO,CNDO/2-CO methods,the changing regularities of structural stability and charge distribution are pointed out.The analyses of energy band structure indicates:this series of molecues have high intrinsical conductivity, the energy gaps will become smaller, intrinsical conductivities increase when the quasi-o...
The absorption coefficient and the refractive index of insulating and conducting polyaniline as the functions of photon energy have been obtained in the 1. 4eV ̄4.8eV photon energy region by means of spectroscopic ellipsometry.The electronic band structures of insulating and conducting polyaniline have been analyzed and discussed.We also investigate the evolution of the band structure and optical spectrum from insulating to conducting. Some data of the refractive index in the UV-visible range are given.
In this paper, the EHMO/CO method is used to calculate the energy band structures of the high-level MF5(M = P, As, Sb)-doped Polyacetylene (PA). After comparing the energy band parameters of MF5-doped PA with MF5-doped PA's, the MF6 is confirmed to be the effective conducting dopant of PA. Further, based on the analyzing the.energy band parameters of PF6, AsF6 and SbF6-doped PA, the deter-minted conductivities order of the doped PAs, which is AsF6>SbF6-PF6, is well explained. At last, the conductivity order...