Spectroscopic investigation of the thermal stability of bound hydrogen in a-C: H
V. I. Ivanov-OmskiĭA. F. Ioffe Physicotechnical Institute, Russian Academy of Sciences, St. Petersburg,G. S. FrolovaA. F. Ioffe Physicotechnical Institute, Russian Academy of Sciences, St. PetersburgS. G. YastrebovA. F. Ioffe Physicotechnical Institute, Russian Academy of Sciences, St. Petersburg
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Equilibrium between free and bound hydrogen in amorphous hydrogenated carbon has been investigated by infrared spectroscopy. A quasireversible departure of hydrogen from the bound state is observed. The activation energy of the bound-quasifree hydrogen chemical reaction and the rate of return of hydrogen to the bound state are estimated. An energy diagram is proposed for the bound-quasifree hydrogen reaction.
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