Effect of Nitrogen on Growth and Optical Properties of Single-Crystal Diamond Synthesized by Chemical Vapor Deposition.

ABSTRACT: Concurrently achieving high growth rate and high quality in single-crystal diamonds (SCDs) is significantly challenging. The growth rate of SCDs synthesized by microwave plasma chemical vapor deposition (MPCVD) was enhanced by introducing N₂ into the typical CH₄-H₂ gas mixtures. The impact of nitrogen vacancy (NV) center concentration on growth rate, surface morphology, and lattice binding structure was investigated. The SCDs were characterized through Raman spectroscopy, photoluminescence (PL) spectroscopy, and X-ray photoelectron spectroscopy. It was found that the saturation growth rate was increased up to 45 μm/h by incorporating 0.8-1.2% N₂ into the gas atmosphere, which is 4.5 times higher than the case without nitrogen addition. Nitrogen a

SUBMITTER: Ren Y 

PROVIDER: S-EPMC10972215 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature