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

Journal Article · Thu May 14 04:00:00 EDT 2015 · Journal of Chemical Physics

DOI:https://doi.org/10.1063/1.4919881· OSTI ID:22415776

Müller, Eric; Mahns, Benjamin; Büchner, Bernd; Knupfer, Martin ^[1]

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

The electronic excitation spectra of charge transfer compounds built from the hydrocarbons picene and chrysene, and the strong electron acceptors F{sub 4}TCNQ (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.

• OSTI ID: 22415776
• Journal Information: Journal of Chemical Physics, Journal Name: Journal of Chemical Physics Journal Issue: 18 Vol. 142; ISSN JCPSA6; ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
ABSORPTION SPECTRA
BINDING ENERGY
CARBON TETRAFLUORIDE
CHRYSENE
CYANIDES
ELECTRONS
ENERGY LOSSES
ENERGY-LOSS SPECTROSCOPY
EVAPORATION
EXCITATION
ORGANIC SEMICONDUCTORS
QUINONES
SALTS
VALENCE