p-type (100) faceted diamond films can be successfully grown by bubbling H-2 through liquid B(OCH3)(3) during the Microwave Plasma Enhanced Chemical Vapour Deposition (MPCVD). Ramann spectra and scanning electron micrographs SEM) convincingly illustrate that diamond-film growth on silicon substrates by a three-step process yields good uniformity with preferential orientation. The field emission current density of the boron doped diamond films can be enhanced from 0.7 mu A/cm(2) for the as grown films to 140 mu A/cm(2) at an applied field of 20 V/mu m by hydrogenation treatment.