Structure and NIR Feature of QCC: A Laboratory Analog of Carbon Dust

Details Structure and NIR Feature of QCC: A Laboratory Analog of Carbon Dust Structure and NIR Feature of QCC: A Laboratory Analog of Carbon Dust

Jan 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999adspr..24..527g&link_type=abstract

Advances in Space Research, Volume 24, Issue 4, p. 527-530.

Computer Science

Scientific paper

We have produced thin films of quenched carbonaceous composite (QCC) by hydrocarbon plasma deposition. The effect of thermal annealing on QCC has been investigated to understand how QCC, as a laboratory analog of carbon dust, is transformed in the warm environment around evolved stars. Spectroscopic measurements have indicated that, by heating, the proportion of aromatic sp2 CH bonds increases relative to sp3 CH bonds. Carbon onion-like spherules of ~10 nm in diameter are found with electron microscopic images after ``graphitization'' of thermal annealing

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