title: Superior field emissions from boron-doped nanocrystalline diamond compared to boron-doped microcrystalline diamond.
abstract: Boron-doped microcrystalline diamond (BMD) and nanocrystalline diamond (BND) thin films were grown on Si substrates by microwave-assisted chemical vapor deposition, and their field emission properties were evaluated. BND exhibited a lower turn-on field and higher field enhancement factor than BMD. Furthermore, in a long-term emission stability test, BND showed only a 4% increase in the current density after 12 h of emission, whereas the current density of BMD decreased by - 59%. These results indicate that BND is a more stable and viable current emitter than BMD.
authors: Department of Physics, MyongJi University, Yongin 449-728, Korea.
authors: Ee Le
authors: EL
authors: Shim
authors: Min Ho
authors: MH
authors: Lee
authors: Ming-Yen
authors: MY
authors: Lu
authors: Chi Jung
authors: CJ
authors: Kang
authors: Kyu-Wang
authors: KW
authors: Lee
authors: Young Jin
authors: YJ
authors: Choi