Characteristics of Solar-Blind Electron-Optical Converters with Diamond Photocathodes

Abstract

Ultraviolet solar-blind electron-optical converters with photocathode sensor layers made of polycrystalline boron-doped diamond films, which were for the first time grown on sapphire, are studied. The spectral sensitivity range of the obtained converters is 180-250 nm, the threshold sensitivity without the electron flux multiplier is no worse than ∼10 -9 W/Hz 0.5 , and the spectral sensitivity is 12-15 mA/W.