Thermal oxidation of the hydrogenated diamond () surface

Interaction of Thermally Activated and Molecular Oxygen with Hydrogenated and Hydrogen-Free Diamond Film Surfaces: Chemical Reactivity and Electron Emission Properties

“…First, oxygen atoms can induce an abstraction of chemisorbed hydrogen and a production of various bonding configurations involving carbon and oxygen (most probably carbonyl bonds). The existence of such a process was proved by recently reported HREELS measurements [1,2,[5][6][7]. As it follows from the NEXAFS spectrum (plot (d) in Fig.…”

“…Introduction The interaction of oxygen with diamond surfaces has been a subject of a number of studies during the recent years [1][2][3][4][5][6][7]. The processes involved in such an interaction attract so extensive interest both in the attempt to study the fundamental dynamics and mechanism of chemical reactions of oxygen with carbon and hydrogen atoms on a diamond surface, and to elucidate the effect of these processes on the electronic properties of diamond.…”

“…On the other hand, oxidized diamond has a positive electron affinity (PEA), and it has been recently shown, that the electron affinity of diamond can be adjusted by an appropriate variation of hydrogen and oxygen concentrations on its surface [13]. Schematic mechanisms of reactions of oxygen activated by a hot (1200-1800 C) filament with diamond surfaces were discussed on the basis of high resolution electron energy loss spectroscopy measurements (HREELS) [1,2,[5][6][7], valence band photoemission [14], and other experimental techniques. From these studies, different reaction products were claimed to form on the substrate surface, including ether-, peroxide-, carbonyl-, and hydroxyl-type bonding.…”

<I>In Situ</I> Observation of Diamond Gasification and the Crystallographic Relationship of Graphite Formed on the Surface of Diamond

“…[5][6][7][8][9][10] In addition, XANES (X-ray absorption near-edge structure) investigation on the surface of diamond with oxidizing gases (O 2 and H 2 O) has provided important information on its gasification behavior. 11) Furthermore, the utilization of catalysts has been effective on the etching for a limited part of the diamond surface.…”

Clarification of oxygen bonding on diamond surfaces by low energy electron stimulated desorption and high resolution electron energy loss spectroscopy

“…[1][2][3][4][5][6][7][8][9][10][11] The processes involved in these interactions attract such an extensive interest both in attempt to study the fundamental dynamics and mechanism of chemical reactions between oxygen and carbon atoms on diamond surfaces, and to elucidate effects of such reactions on the electronic properties of diamond. These are being of particular importance due to negative electron affinity and surface conductivity observed for undoped hydrogenated diamond, which are believed to be related to hydrogen atoms in the near-/ subsurface region.…”