We have prepared potassium intercalated 1,2;8,9-dibenzopentacene films under vacuum conditions. The evolution of the electronic excitation spectra upon potassium addition as measured using electron energy-loss spectroscopy clearly indicate the formation of particular doped phases with compositions Kxdibenzopentacene (x = 1,2,3). Moreover, the stability of these phases as a function of temperature has been explored. Finally, the electronic excitation spectra also give insight into the electronic ground state of the potassium doped 1,2;8,9-dibenzopentacene films.
@article{arxiv.1206.0526,
title = {Evidence for phase formation in potassium intercalated 1,2;8,9-dibenzopentacene},
author = {Friedrich Roth and Andreas König and Benjamin Mahns and Bernd Büchner and Martin Knupfer},
journal= {arXiv preprint arXiv:1206.0526},
year = {2012}
}
Comments
6 pages, 5 figures. arXiv admin note: text overlap with arXiv:1201.2002