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Electric Field Directed Growth of Molecular Wires of Charge Transfer Molecules on Prefabricated Metal Electrodes

Published online by Cambridge University Press:  01 February 2011

T Phanindra Sai
Affiliation:
phanindra@physics.iisc.ernet.in, Indian Institute of Science, Department of Physics, C V Raman Avenue, Bangalore 560012, INDIA, Bangalore, 560012, India, 918022932726, 918023602602
A K Raychaudhuri
Affiliation:
arup@bose.res.in, Indian Institute of Science, Department of Physics, Bangalore, 560012, India
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Abstract

Molecular wires of charge transfer molecules were formed by co-evaporating the 7 7 8 8-Tetracyanoquinodimethane [TCNQ] (acceptor) and Tetrathiafulvalene [TTF] (donor) molecules across prefabricated metal electrodes. Molecular wires of TTF TCNQ were also formed by evaporating single complex of TTF:TCNQ across prefabricated metal electrodes The prefabricated metal electrodes were made using electron beam lithography on SiO2 and glass cover slip substrates. Even though TTF: TCNQ wires grown from both co-evaporation and evaporation techniques show semiconductor like behavior in temperature dependence of resistance they show different activation energies due the difference in stoichiometry of TTF and TCNQ.

Type
Research Article
Copyright
Copyright © Materials Research Society 2008

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References

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