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Oriented Sexiphenyl Single Crystal Nanoneedles on TiO 2 (110)
Author(s) -
Koller G.,
Berkebile S.,
Krenn J. R.,
Tzvetkov G.,
Hlawacek G.,
Lengyel O.,
Netzer F. P.,
Teichert C.,
Resel R.,
Ramsey M. G.
Publication year - 2004
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200400276
Subject(s) - materials science , nanotechnology , crystal (programming language) , crystallography , computer science , programming language , chemistry
Para ‐sexiphenyl is found to assemble into azimuthally oriented crystalline nanoneedles on a TiO 2 substrate (see Figure). The needles grow after prolonged exposure until they completely tile the surface with a film of uniform thickness. This novel morphology combined with the unique orientation of the molecules (all parallel to each other and the substrate and all with their molecular planes tilted with respect to the substrate) appears useful for both light‐emitting diodes and field‐effect transistor applications.