Interface engineering for molecular alignment and device performance of quaterrylene thin films

Ryoma Hayakawa; Matthieu Petit; Toyohiro Chikyow; Yutaka Wakayama

doi:10.1063/1.2998404

Interface engineering for molecular alignment and device performance of quaterrylene thin films

Ryoma Hayakawa, Matthieu Petit, Toyohiro Chikyow, Yutaka Wakayama

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

Abstract

We investigated the impact of interface modification by an octadecyltrichlorosilane self-assembled monolayer (OTS-SAM) on growth mode and transistor performance of quaterrylene thin films. Interface modification by OTS-SAM contributed effectively to stress-free film growth and highly molecular ordering, particularly in the initial layers, dramatically improving transistor performance. We found that the structural features in a few layers were key factors for determining the overall thin film growth mode and ameliorating carrier transport in organic field-effect transistors (OFETs). These results clearly demonstrated the effectiveness of interface engineering in the OFETs.

Original language	English
Article number	153301
Journal	Applied Physics Letters
Volume	93
Issue number	15
DOIs	https://doi.org/10.1063/1.2998404
Publication status	Published - 2008
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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AU - Hayakawa, Ryoma

AU - Petit, Matthieu

AU - Chikyow, Toyohiro

AU - Wakayama, Yutaka

PY - 2008

Y1 - 2008

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AB - We investigated the impact of interface modification by an octadecyltrichlorosilane self-assembled monolayer (OTS-SAM) on growth mode and transistor performance of quaterrylene thin films. Interface modification by OTS-SAM contributed effectively to stress-free film growth and highly molecular ordering, particularly in the initial layers, dramatically improving transistor performance. We found that the structural features in a few layers were key factors for determining the overall thin film growth mode and ameliorating carrier transport in organic field-effect transistors (OFETs). These results clearly demonstrated the effectiveness of interface engineering in the OFETs.

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Interface engineering for molecular alignment and device performance of quaterrylene thin films

Abstract

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