Computer Science
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010ep%26s...62...81s&link_type=abstract
Earth, Planets and Space, Volume 62, Issue 1, p. 81-90.
Computer Science
Scientific paper
It has been known for some time that the properties of a material are changed in nanometer size. Since it is nontrivial that polycyclic aromatic hydrocarbon (PAH) grains at the nanometer scale show similar properties with that of macroscopic scale, PAH grains were synthesized by a gas evaporation method and were analyzed using a transmission electron microscope and their UV-Vis and mid-IR spectra were measured. Results from these experiments showed that condensed anthracene grains from the gas phase had a planar form and showed similar infrared peaks compared to anthracene molecules, but with somewhat wider bands and different relative intensities. Some new features were also observed. The anthracene molecules formed photodimer in their grain and showed different infrared features after UV irradiation. This would be the first report concerning nanometer-sized PAH grains.
Kaito Chihiro
Kimura Yusuke
Saito Masao
Sakon Itsuki
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