Title: Effect of surface localized states on conductivity in an organic crystal
Authors: Reynaert, J
Poot, K
Arkhipov, V
Borghs, Gustaaf
Heremans, Paul #
Issue Date: Mar-2005
Publisher: Amer inst physics
Series Title: Journal of Applied Physics vol:97 issue:6
Article number: 063711
Abstract: Current-voltage characteristics of perylene crystals have been measured at different temperatures both with coplanar Au contacts and in the sandwich configuration in between an indium tin oxide bottom contact and a Au top contact. The voltage and temperature dependences of the current turned out to be very different in coplanar and sandwich structures. A strong increase of the conductivity in coplanar contact structures was observed upon oxygen-plasma treatment, indicating a strong influence of surface states on electronic properties of organic crystals. The effect of crystal-growth conditions on electronic parameters of the crystal is discussed. The obtained experimental data are interpreted in terms of dopant-assisted charge injection across a metal-organics interface. (C) 2005 American Institute of Physics.
ISSN: 0021-8979
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Physics and Astronomy - miscellaneous
ESAT - MICAS, Microelectronics and Sensors
# (joint) last author

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