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Interactions between two counter-propagating self-trapped beams at infrared wavelengths are experimentally observed in bulk photorefractive semiconductor material InP:Fe. The experimental results are in good concordance with computer simulations. Using these simulations we show that it is possible to develop optical interconnections based on waveguides induced by soliton interactions in a bulk semiconductor...
This paper focuses on physical properties of ZnSe thin films and photovoltaic parameters of ZnSe/CdTe thin film solar cells. X-ray analysis and SEM images show that ZnSe films are polycrystalline and exhibit wurtzite-zinc-blende structure. ZnSe/CdTe solar cells show an efficiency of about 4.7%. The external quantum efficiency (EQE) for these cells shows that the shape of these characteristics depends...
Electrical conductivity and the Hall-effect are investigated in the temperature interval (80–400) K on thermally annealed in H2 CdS thin films obtained by chemical bath deposition. Different characters of the temperature dependence of conductibility are observed in the CdS films annealed at different temperatures. The Hall measurements allow calculating the values of the NA, ND, nex and ED. According...
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