Ozonolysis of diamond.

Area of Science:

• Surface Science
• Materials Chemistry
• Computational Materials Science

Background:

• Diamond oxidation is key for electronic device applications.
• Ozone offers low-temperature processing advantages over molecular oxygen.
• Understanding surface reactions is vital for material property modulation.

Purpose of the Study:

• Investigate the dissociative adsorption of ozone on the diamond {001} surface.
• Characterize reaction pathways and resulting surface structures.
• Analyze electronic and spin density changes during oxidation.

Main Methods:

• First-principles molecular dynamics simulations.
• Density functional theory calculations.
• Analysis of structural, electron, and spin densities.

Main Results:

• Ozone readily oxidizes the diamond {001} surface.
• Two distinct reaction modes observed: partial and complete ozone dissociation.
• Formation of alkoxide, epoxide, and ketone-like oxygen adatom structures.

Conclusions:

• Ozone adsorption on diamond {001} leads to stable oxidized structures.
• Simulations provide insights into bonding rearrangements and electronic property modulation.
• Findings support ozone as a viable oxidant for diamond surface functionalization.