Small gap semiconducting organic charge-transfer interfaces
authors Nakano, M; Alves, H; Molinari, AS; Ono, S; Minder, N; Morpurgo, AF
journal APPLIED PHYSICS LETTERS
keywords TMTSF-TCNQ; CONDUCTORS; HETEROSTRUCTURES; HETEROJUNCTIONS
abstract We investigated transport properties of organic heterointerfaces formed by single-crystals of two organic donor-acceptor molecules, tetramethyltetraselenafulvalene and 7,7,8,8-tetracyanoquinodimethane (TCNQ). Whereas the individual crystals have unmeasurably high resistance, the interface exhibits a resistivity of few tens of megohm with a temperature dependence characteristic of a small gap semiconductor. We analyze the transport properties based on a simple band diagram that naturally accounts for our observations in terms of charge transfer between two crystals. Together with the recently discovered tetrathiafulvalene-TCNQ interfaces, these results indicate that single-crystal organic heterostructures create functional electronic systems with properties relevant to both fundamental and applied fields. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3449558]
publisher AMER INST PHYSICS
issn 0003-6951
year published 2010
volume 96
issue 23
digital object identifier (doi) 10.1063/1.3449558
web of science category Physics, Applied
subject category Physics
unique article identifier WOS:000278695900039
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journal analysis (jcr 2019):
journal impact factor 3.597
5 year journal impact factor 3.4
category normalized journal impact factor percentile 76.299
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