| Issue |
MATEC Web Conf.
Volume 67, 2016
International Symposium on Materials Application and Engineering (SMAE 2016)
|
|
|---|---|---|
| Article Number | 04009 | |
| Number of page(s) | 6 | |
| Section | Chapter 4 Surface Engineering and Coating Technology | |
| DOI | https://doi.org/10.1051/matecconf/20166704009 | |
| Published online | 29 July 2016 | |
Effects of Polymeric Dielectric Morphology on Pentacene Morphology and Organic TFT Characteristics
Faculty of Engineering, Iwate University, Ueda 4-3-5, Morioka 020-8551, Japan
* Corresponding author: ye@iwate-u.ac.jp
In this paper, we report on the effects of the polymeric dielectric morphology on pentacene morphology and organic thin film transistor (TFT) characteristics. The morphology and thickness of cyclo-olefin polymer (COP) dielectric could be controlled by selecting a solvent. Higher the solvent’s boiling point is, thinner and smother COP films could be obtained. Using the solvent of trimethylcyclohexane, the spin-coated COP films of ca. 330 nm with the peak-to-valley of 7.35 nm and the roughness of root mean square of 0.58 nm were obtained, and pentacene TFT showed high mobility of 2.0 cm2V-1s-1, which originated from highly ordering of pentacene thin films deposited on the smoother and thinner COP films.
© The Authors, published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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