Reorientation of the High Mobility Plane in Pentacene-Based Carbon Nanotube Enabled Vertical Field Effect Transistors

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• 作者：Mitchell A. McCarthy ; Bo Liu ; Ramesh Jayaraman ; Stephen M. Gilbert ; Do Young Kim ; Franky So ; Andrew G. Rinzler
• 刊名：ACS Nano
• 出版年：2011
• 出版时间：January 25, 2011
• 年：2011
• 卷：5
• 期：1
• 页码：291-298
• 全文大小：474K
• 年卷期：0
• ISSN：1936-086X

文摘

The large current densities attained by carbon nanotube enabled vertical field effect transistors using crystalline organic channel materials are somewhat unexpected given the known large anisotropy in the mobility of crystalline organics and their conventional ordering on dielectric surfaces which tends to orient their high mobility axes parallel to the surface. This seeming contradiction is resolved by the finding that the nanotubes induce a molecular ordering that reorients the high mobility axes to favor current flow in a direction perpendicular to the substrate surface.