Perovskite type manganese oxide is a kind of in solid state chemistry and the field of condensed matter physics are used extensively in the study of materials. Application of sol-gel method on perovskite type manganese oxide doping, preparation out series of samples La0.6BaxSr(0.4-x)MnO3, including powder and flake. After annealing treatment, the X ray diffraction tests of different annealing temperature on the influence of the structure of the samples was studied.
The fixing phase of the two-center holographic recording is not consistent with the mono-exponential formula, and the
charge-transfer mechanism of the fixing phase is studied theoretically. The electron gratings of the shallower traps center
have a great influence on the fixed space-charge-field, the stronger electrons grating of the shallower traps center would
enhance the saturation space-charge-field of the deeper traps center in the fixing phase. The effects of the Fe
concentration, Cu concentration and the oxidization-reduction state of the crystals on the fixed space-charge-field are
investigated by using the Runge-Kutta method. The results show that the higher Fe concentration, the lower Cu
concentration and the weakly oxidized crystal are available for enhancing the saturation space-charge-field of the deeper
traps center.
Taking gratings with periodically varying slit width as two groups of diffraction hinge unit, light radiates on the gratings,
each diffraction unit produces diffraction respectively, and then it is equivalent to interference of two beams of coherent
light. Using the theory of light diffraction and interference, by means of the diffraction light intensity distribution
function of equal slit width, the light intensity distribution law of Fraunhofer diffraction is analyzed for transmission
grating of periodically varying slit width. Based on the discussion of general results obtained, the diffraction light
intensity distribution and light-shade stripe conditions are obtained for gratings with special slit width and nick width, the
diffraction pattern and light intensity distribution curves are plotted through computer simulation.
The effect of ozone and O2 plasma treatment of ITO on the charge-carrier injection in ITO/N, N'-bis-(1-napthyl)-N, N'-
diphenyl-1,1'biphenyl-4,4'-diamine (NPB)/tris(8-quinolinolato)-aluminum (Alq3)/Al organic heterojunction devices
have been studied through the analysis of current-voltage characteristics. From the experiments, it is demonstrated that
the average electric field inside Alq3 layer is larger than the average field in the NPB layer. The investigation
demonstrated that the hole injection into NPB from anode is Fowler-Nordheim (FN) tunneling and the electron injection
into Alq3 from cathode is Richardson-Schottky (RS) thermonic emission.
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