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

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.
Authors:
; ; ;  [1]
  1. IFW Dresden, P.O. Box 270116, D-01171 Dresden (Germany)
Publication Date:
OSTI Identifier:
22415776
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Chemical Physics; Journal Volume: 142; Journal Issue: 18; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
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