Hydrogen-free amorphous carbon preparation and properties

摘要: Abstract Amorphous carbon containing very little hydrogen and having a highly tetrahedral character is deposited by filtered cathodic arc. This amorphous shows photoconductivity under white light illumination. It slightly p-type in pure form but becomes n-type when doped with nitrogen. Electron diffraction that nitrogen levels of less than 1% do not distort the network, at higher concentrations destabilises structure. Plasmon spectroscopy presence 1 nm “defective” surface layer even material which has implications for device applications. A junction field effect transistor structure proposed as possible device.