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Chemical Bonding and Schottky Barrier for Metal-Carbon Nanotube Contacts

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5 Author(s)
Yu He ; Inst. of Microelectron., Tsinghua Univeristy, Beijing ; Jinyu Zhang ; Ming Zhang ; Yan Wang
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We investigate both end-contact and side-contact structures between Al, Pd, Sc and carbon nanotube (CNT) in this paper. The different structures show the different chemical bonds and charge transfer at the metal-CNT contact interfaces. A novel method based on dipole effect is proposed to calculate the Schottky barrier height (SBH). Different SBHs for the contacts are due to different electro-negativity of metal atoms as well as the chemical bonds.

Published in:

Computational Electronics, 2009. IWCE '09. 13th International Workshop on

Date of Conference:

27-29 May 2009