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Nonlinear electrical transport of semi-insulating (SI) GaAs detector in semiconductor-gas discharge IR image converter (SGDIC) are studied experimentally for a wide range of the gas pressures (p=28–55Torr), interelectrode distances (d=445–525μm) and inner electrode diameters (D=12–22mm) of photocathode. The destabilization of homogeneous state observed in a planar dc-driven structure is due to nonlinear...
In a semiconductor gas discharge structure with diameters much larger than an inter-electrode distance, the effects of different parameters (i.e. electrode separation, gas pressure, diameter of the GaAs photodetector, etc.) on electrical breakdown and current oscillations were studied. Non-stationary and non-homogeneous states are generated in the structure, through the spatially uniform irradiation...
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