Surface Roughness of Organic Semiconductor Superlattice Using Pentacene as Semiconductor
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概要
- 論文の詳細を見る
An organic semiconductor superlattice using pentacene as a semiconductor has been investigated. In general, stacked pentacene shows a dendritic structure. However, in a thin pentacene layer as two monolayers, the roughness of the pentacene surface is smooth. Therefore, a smoother surface will be obtained by stacking a thin pentacene/insulator structure. From this, an insulating material of alumina is selected and the multilayer of pentacene [2 monolayer (ML)]/insulator is investigated. As a result, a relatively smoother surface roughness of 2.0 nm was observed for the structure of [pentacene (2 ML)/Al2O3 (5 Å)] $\times$ 13/pentacene (2 ML). On the other hand, in the case of the silicon dioxide layer, a nonuniform layer with a smaller grain was observed. This stacked organic layer structure will be useful for a multichannel organic layer for application in organic field-effect transistors.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2008-01-25
著者
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Naka Shigeki
Graduate School of Science and Engineering, University of Toyama, 3190 Gofuku, Toyama 930-8555
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Naka Shigeki
Graduate Scholl of Science and Engineering, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan
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Okada Hiroyuki
Graduate Scholl of Science and Engineering, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan
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Okada Hiroyuki
Graduate School of Science and Engineering, University of Toyama, 3190 Gofuku, Toyama 930-8555
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Tidiishi Yuuki
Graduate School of Science and Engineering, University of Toyama, 3190 Gofuku, Toyama 930-8555
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