Feedback-controlled electric breakdown of graphene in air or vacuum is a well-established way fabricating tunnel junctions, nanogaps, and quantum dots. We show that the method equally applicable to encapsulated constrictions fabricated using hydrogen silsesquioxane. The silica-like layer left by silsesquioxane resist after electron-beam exposure remains intact graphene. explore conductance swit...

The breakdown behavior of a V-doped 4H silicon carbide photoconductive switch with transparent electrode under high electric field is studied. device triggered by laser pulse below the bandgap wavelength repetition rate 100 Hz. light peak-power reaches hundreds kW, and bias voltage increased from 10 to 20 kV. With accumulation number pulses, shows behavior. Through microscopic diagnosis damaged...

Kaolin is a clay mineral that has found its huge use in electrical insulation. In power industries, mullite insulators plays vital role during electric transmission. The transformation of kaolin to via sintering method was carried out by varying the temperature heating at interval from . mass observed have changed until complete took place 11500C. dielectric strength (breakdown voltage) analyse...

The breakdown characteristics of an avalanche photodiode (APD) are generally assessed by examining the steepness of the breakdown-probability curve as a function of the normalized excess breakdown voltage, ∆V /V BR , which is the voltage beyond the breakdown voltage, V BR , normalized by the breakdown voltage. This metric indicates how quickly the transition from stable operation (finite gain) ...