Effect of Molecular Orientation of Epitaxially Grown Platinum(II) Octaethyl Porphyrin Films on the Performance of Field-Effect Transistors

The molecular alignment of platinum(II) octaethyl porphyrin (PtOEP) crystals evaporated on KBr (see atomic force microscopy image, Figure) can be readily changed from perpendicular to parallel by changing the substrate temperature. The field‐effect mobility of transisitors prepared using epitaxially...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2003-05, Vol.15 (9), p.699-702
Main Authors: Noh, Y.-Y., Kim, J.-J., Yoshida, Y., Yase, K.
Format: Article
Language:English
Subjects:
Alignment
Alignment, electric field induced
electric field induced
Epitaxal films
Field-effect transistors
Field‐effect transistors, organic
Metalloprophyrins
organic
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Summary:The molecular alignment of platinum(II) octaethyl porphyrin (PtOEP) crystals evaporated on KBr (see atomic force microscopy image, Figure) can be readily changed from perpendicular to parallel by changing the substrate temperature. The field‐effect mobility of transisitors prepared using epitaxially grown PtOEP films aligned perpendicularly to a substrate is 100 times higher than that of those of parallel alignment.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.200304005