TITLE

Valence photoelectron spectra of an electron-beam-irradiated C60 film

AUTHOR(S)
Onoe, Jun; Nakao, Aiko; Hida, Akira
PUB. DATE
October 2004
SOURCE
Applied Physics Letters;10/4/2004, Vol. 85 Issue 14, p2741
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Valence photoelectron spectra of an electron-beam (EB) irradiated C60 film, which exhibited metallic electron-transport properties in air at room temperature, are presented. The electronic structure of the C60 film became closer to that of graphite as the EB-irradiation time increased, and its density of states around the Fermi level was eventually greater than for the graphite. This suggests that the electronic structure of the C60 film changed from a semiconductor to a semimetal and/or metal by EB irradiation. Interestingly, the electronic structure remained metallic even after five days of air exposure, which is the reason for the metallic electron-transport property in our previous report [Appl. Phys. Lett. 82, 595 (2003)].
ACCESSION #
14713401

 

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