Tungsten nanowires and their field electron emission properties

摘要: We report the fabrication of tungsten nanowires, by simple thermal treatment W films, that behave as self-catalytic layers and their excellent electron field emission properties well. The obtained nanowires have a diameter ranging from 10 to 50 nm, showing perfect straightness neat appearance. Typical turn-on for is about 5 V/μm, enhancement factor β becomes 38 256, which very close high efficient single-wall carbon nanotube emitters. most exciting result possibility easy perfectly straight promising building blocks terabit-level interconnection nanomachine components without intentional use any heterogeneous catalysts.