Spectroscopy of homogeneous deuterated hydrocarbon films redeposited from a T-10 tokamak plasma discharge |
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Authors: | N Yu Svechnikov V G Stankevich A M Lebedev K A Men’shikov B N Kolbasov V V Kriventsov |
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Institution: | (1) Russian Research Center Kurchatov Institute, Moscow, 123182, Russia;(2) Boreskov Institute of Catalysis, Siberian Division, Russian Academy of Sciences, Novosibirsk, Russia |
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Abstract: | Homogeneous deuterated hydrocarbon films redeposited from a deuterium plasma discharge inside the T-10 tokamak vacuum chamber are studied using photoluminescence methods; EXAFS, EPR, and IR spectroscopies; and temperature measurements. The photoluminescence excitation spectra of sp 3-sp 2 nanostructures of tokamak films are compared with those of sp 2 nanostructures of C60 fullerite films. The effect of defect states on photoluminescence and its temperature quenching is discussed. It is concluded that the model of temperature luminescence quenching for homogeneous deuterated tokamak films is similar to that for amorphous a-C:H films. |
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