Carrier generation within the surface region of hydrogenated thin film polycrystalline diamond

Hydrogenated Black Diamond: An Electrical Study

“…Figure 3 shows four point sheet resistivity measurements for samples A-D over the 10-300 K temperature range. The resistivity of all samples increases with decreasing temperature as is to be expected, the room temperature values being comparable with those available in the literature [3][4][5]15]. Figures 4 and 5 show the sheet carrier concentrations and carrier mobilities derived from the Hall measurements for samples A-D, plotted as a function of sample temperature.…”

“…Problems with doping diamond both n-type and p-type, due to the high density of the diamond lattice, have hindered the commercial realisation of devices. However, exposing diamond to a hydrogen plasma yields a surface conductive layer with p-type carriers of low activation energy [1][2][3][4][5][6][7][8][9]. This phenomenon has been utilised to fabricate diodes and field effect transistors on homoepitaxial and polycrystalline films, which display excellent characteristics at room temperature [10][11][12].…”

Electrochemical oxidation of sulphamerazine at boron‐doped diamond electrodes: Influence of boron concentration

“…Additionally, the non-ionized SH form, mainly existing in natural pH of water, was most effectively oxidized in a direct way. 2) at BDD 2 and BDD 10 .…”

“…For both anodes, the anodic peak current attributable to SMR appeared in potential window where no oxygen evolution takes place. The potential of SRM oxidation was 0.92 and 1.0 V for BDD 10 and BDD 2 , respectively. This fact indicates that the direct oxidation of SMR at BDDs is possible; the reaction is faster at BDD 10 electrode compared to BDD 2 electrode.…”

“…The structural and electronic properties of boron doped electrodes have been extensively studied [8]. Moreover, the influence of boron acceptor on surface conductivity [9,10], morphology [11,12] and phase structure defined as sp 3 /sp 2 ratio [13,14] was investigated in polycrystalline diamond films.…”