In respect of electrochemical
applications, diamond films exhibit excellent intrinsic
properties including wide electrochemical potential window, low
background current, good electro-catalytic activity for many redox
reactions when decorated with metal nanoparticles and high chemical
stability [2–4]. Therefore, B-doped diamond (BDD) films have
been extensively studied in the fields of electrochemistry [5–7]
and biosensor [8,9]. In addition to the planar diamond films, one