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J Chem Phys. 2007 Jun 7;126(21):214702.

The electronic properties of potassium doped copper-phthalocyanine studied by electron energy-loss spectroscopy.

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  • 1IFW Dresden, P.O. Box 270116, D-01171 Dresden, Germany.


The authors have studied the electronic structure of potassium doped copper-phthalocyanine using electron energy-loss spectroscopy. The evolution of the loss function indicates the formation of distinct KxCuPc phases. Taking into account the C1s and K2p core level excitations and recent results by Giovanelli et al. [J. Chem. Phys. 126, 044709 (2007)], they conclude that these are K2CuPc and K4CuPc. They discuss the changes in the electronic excitations upon doping on the basis of the molecular electronic levels and the presence of electronic correlations.

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