Diamond fabrication parameters has a distinct impact on material properties including dopant density, non-diamond-carbon (NDC) content, grain morphology, and surface chemistry. These features can significantly influence the way the diamond electrode interacts with the electrolyte in electrochemical systems. Boron content effects the electrical conductivity of diamond by acting as an acceptor, attracting electrons from neighboring bonds, creating a pathway for electrons to travel. With a high enough doping concentration, > 10²⁰ atoms cm^-3, BDD shows metal-like conductivity. According to Macpherson, metal-like conduction in BDD exhibits a resistivity of <10 mΩ cm.  Increasing the dopant concentration can lead to higher capacitance and the likelihood of NDC. Thus, an optimal doping concentration exists which gives the high conductivity without significantly increasing NDC content. Hutton et al. found the optimum concentration to be ~3 x 10²⁰ B atoms cm^-3. Increased NDC content results in a more electrocatalytically active electrode which reduces the solvent window and increases the surface’s susceptibility to fouling. The changing solvent window of BDD due to changes in boron content are seen in the figure below where an increase in boron content results in a reduction of the solvent window. An increase in boron content results in a lower peak-to-peak potential separation which indications higher electrochemical reactivity.