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Hydrogen-terminated electrically

Hamers and coworkers have shown that the hydrogen-terminated, electrically insulating diamond surface can be chemically modified with functionalized alkenes (e.g., perfluorodecene) [154]. They also showed that it is possible to prepare diamond surfaces terminated with organic molecules containing primary amine and carboxylic acid functional groups. In their approach, chemical functionalization is accomplished with the aid of UV irradiation. The diamond surface, in an enclosed vessel, is exposed to a small volume of the particular organic compound. The solution environ-... [Pg.217]

Wang, S. H., Swain, G. M. Spatially heterogeneous electrical and electrochemical properties of hydrogen-terminated boron-doped nanocrystalhne diamond thin film deposited from an argon-rich CH/... [Pg.155]

Nitrogen and boron are the only elements that significantly affect the bulk electrical conductivity of diamond in addition, a hydrogen-terminated surface gives rise to p-type conduction (24,25). [Pg.370]

Atoms of metals are more interesting tiian hydrogen atoms, because they can form not only dimers Ag2, but also particles with larger number of atoms. What are the electric properties of these particles on surfaces of solids The answer to this question can be most easily obtained by using a semiconductor sensor which plays simultaneously the role of a sorbent target and is used as a detector of silver adatoms. The initial concentration of silver adatoms must be sufficiently small, so that growth of multiatomic aggregates of silver particles (clusters) could be traced by variation of an electric conductivity in time (after atomic beam was terminated), provided the assumption of small electric activity of clusters on a semiconductor surface [42] compared to that of atomic particles is true. [Pg.248]

ELECTRODE. Either ul two substances having different electromotive activity that enables an electric current to flow in the presence of an electrolyte. See also Electrolyte. Electrodes are sometimes called plates or terminal. Commercial electrodes are made uf a number of materials that vary widely in electrical conductivity, i.e.. lead, lead dioxide, zinc, aluminum, copper, iron, manganese dioxide, nickel, cadmium, mercury, titanium, and graphite research electrodes may be calomel mercurous chloride), platinum, glass or hydrogen. [Pg.543]

Hydrogenation of double bonds can also be performed at the mercury cathode using methanol/tetramethylammonium salts as SSE 301 The solvated electron, stabilized by (CH3)4N+ and transferred in the electrical double layer to the double bond, is assumed to be the reductant. As in CH3NH2/LiCl conjugated double bonds may be reduced, while isolated ones remain untouched. Terminal triple bonds are hydrogenated to double bonds. [Pg.91]

Though not strictly functioning as resistors/conductors, carbon nanotubes have just been reported in an extraordinarily vapor-sensitive capacitive device [19]. The electric field lines emanating from the nanotubes are responsible for a localized dielectric response that can be modulated by minute quantities of adsorbate on the nanotube surface. A layer of hydrogen-bonding polymer, or even a mono-layer terminated in mildly acidic groups, increased sensitivity to parts per billion levels. Response strength was correlated with the dipole moment of the analytes. [Pg.414]


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Hydrogen-terminated

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