An electron energy-loss study of picene and chrysene based charge transfer salts

Eric Müller; Benjamin Mahns; Bernd Büchner; Martin Knupfer

doi:10.1063/1.4919881

An electron energy-loss study of picene and chrysene based charge transfer salts

J Chem Phys. 2015 May 14;142(18):184702. doi: 10.1063/1.4919881.

Authors

Eric Müller¹, Benjamin Mahns¹, Bernd Büchner¹, Martin Knupfer¹

Affiliation

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

PMID: 25978900
DOI: 10.1063/1.4919881

Abstract

The electronic excitation spectra of charge transfer compounds built from the hydrocarbons picene and chrysene, and the strong electron acceptors F4TCNQ (2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane) and TCNQ (7,7,8,8-tetracyanoquinodimethan) have been investigated using electron energy-loss spectroscopy. The corresponding charge transfer compounds have been prepared by co-evaporation of the pristine constituents. We demonstrate that all investigated combinations support charge transfer, which results in new electronic excitation features at low energy. This might represent a way to synthesize low band gap organic semiconductors.