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Title: Spontaneous charge transfer at organic-organic homointerfaces to establish thermodynamic equilibrium

Abstract

The energy level alignment of {alpha},{omega}-dihexylsexithienyl (DH6T) mono- and multilayers on tetrafluorotetracyanoquinodimethane (F4-TCNQ) precovered Ag(111) and polycrystalline Au substrates was investigated with ultraviolet photoelectron spectroscopy. For certain F4-TCNQ precoverages molecular level pinning at DH6T monolayer-multilayer homointerfaces was observed. The pinning behavior shows that thermodynamic equilibrium can be established across hexyl chains via charge transfer, indicating the limited use of these short alkyl chains for insulation in the field of molecular electronics.

Authors:
; ; ; ;  [1];  [2]
  1. Institut fuer Physik, Humboldt-Universitaet zu Berlin, Newtonstr. 15, D-12489 Berlin (Germany)
  2. (Germany)
Publication Date:
OSTI Identifier:
20960163
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 90; Journal Issue: 12; Other Information: DOI: 10.1063/1.2715042; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CHARGE EXCHANGE; ENERGY LEVELS; HETEROCYCLIC COMPOUNDS; ORGANIC COMPOUNDS; PHOTOELECTRON SPECTROSCOPY; POLYCRYSTALS; SILVER; SUBSTRATES; ULTRAVIOLET RADIATION

Citation Formats

Duhm, S., Glowatzki, H., Rabe, J. P., Koch, N., Johnson, R. L., and Institut fuer Experimentalphysik, Universitaet Hamburg, D-22761 Hamburg. Spontaneous charge transfer at organic-organic homointerfaces to establish thermodynamic equilibrium. United States: N. p., 2007. Web. doi:10.1063/1.2715042.
Duhm, S., Glowatzki, H., Rabe, J. P., Koch, N., Johnson, R. L., & Institut fuer Experimentalphysik, Universitaet Hamburg, D-22761 Hamburg. Spontaneous charge transfer at organic-organic homointerfaces to establish thermodynamic equilibrium. United States. doi:10.1063/1.2715042.
Duhm, S., Glowatzki, H., Rabe, J. P., Koch, N., Johnson, R. L., and Institut fuer Experimentalphysik, Universitaet Hamburg, D-22761 Hamburg. Mon . "Spontaneous charge transfer at organic-organic homointerfaces to establish thermodynamic equilibrium". United States. doi:10.1063/1.2715042.
@article{osti_20960163,
title = {Spontaneous charge transfer at organic-organic homointerfaces to establish thermodynamic equilibrium},
author = {Duhm, S. and Glowatzki, H. and Rabe, J. P. and Koch, N. and Johnson, R. L. and Institut fuer Experimentalphysik, Universitaet Hamburg, D-22761 Hamburg},
abstractNote = {The energy level alignment of {alpha},{omega}-dihexylsexithienyl (DH6T) mono- and multilayers on tetrafluorotetracyanoquinodimethane (F4-TCNQ) precovered Ag(111) and polycrystalline Au substrates was investigated with ultraviolet photoelectron spectroscopy. For certain F4-TCNQ precoverages molecular level pinning at DH6T monolayer-multilayer homointerfaces was observed. The pinning behavior shows that thermodynamic equilibrium can be established across hexyl chains via charge transfer, indicating the limited use of these short alkyl chains for insulation in the field of molecular electronics.},
doi = {10.1063/1.2715042},
journal = {Applied Physics Letters},
number = 12,
volume = 90,
place = {United States},
year = {Mon Mar 19 00:00:00 EDT 2007},
month = {Mon Mar 19 00:00:00 EDT 2007}
}