Diamond heteroepitaxial thin films were successfully synthesized on high-quality Ir(001)/MgO(001) substrates. In bias-enhanced nucleation, antenna-edge-type microwave plasma-assisted chemical vapor deposition (MPCVD) was used. Subsequently, the <001> selective and smoothing growth processes were conducted by conventional MPCVD. Reconstructed (2×1) structure patterns have been observed by reflection high-energy electron diffraction (RHEED), which indicated that the surface of the diamond film is very smooth. The mean roughness is less than 2 nm in a 10-μm2 area, as revealed by atomic force microscopy observations.
ASJC Scopus subject areas
- 化学 (全般)