New Method of Ccarbon Nanofibers Synthesis for Field Emission Applications

A new method for carbon nanomaterials production based on the catalytic pyrolysis of butane-propane mixture was proposed. The filament carbon nanofibres all had curved shapes and typically had diameters from 8 to 80 nm, and lengths of up to 1 mum. A field emission cathode based on the synthesized carbon nanofibres was produced by screen printing. Field emission curves and Fowler-Nordheim curves were extracted by a diode-type tester. Results show that the cold cathodes exhibited low turn-on fields, and high uniformity and emission stability