Band Structure and Contact Resistance of Carbon Nanotubes Deformed by a Metal Contact
نویسندگان
چکیده
منابع مشابه
On Contact Resistance of Carbon Nanotubes
Carbon nanotubes (CNTs) have found many potential applications stemming from their small dimensions and marvellous electronic, mechanical, and thermal properties. One of the barriers for using CNTs as building blocks in nanoelectronics is the high contact resistance. This paper reviews recent progress on the research of contact resistance of CNTs. It starts with a preview of two basic contact c...
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A technique of measuring contact resistance between an individual nanotube and a deposited metallic film is described. Using laser ablation to sequentially shorten the contact length between a nanotube and the evaporated metallic film, the linear resistivity of the nanotube as well as the specific contact resistivity between the nanotube and metallic film can be determined. This technique can b...
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Poor screening of the long-range Coulomb interaction in one-dimensional carbon nanotubes results in a peculiar picture of contact phenomena. Being brought to a contact with a metal, conducting nanotube accumulates electric charge whose density decays slowly with the distance from the contact. This should be contrasted to a conventional metal-metal contact where the charge density decreases expo...
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Our investigations reveal that the bonding of the transition-metal atoms on a single-wall carbon nanotube ~SWCN! depends on the detailed contact conditions. On the basis of our results, we suggest that the early 3-d elements ~Sc, Ti, and V! can be expected to be good candidates for making metal–SWCN contacts of low resistance, while contacts employing the late 3-d elements ~Fe, Co, and Ni! and ...
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A high contact resistance restricts the application of carbon nanotubes (CNTs) in fabrication of field-effect transistors (FETs). Thus, it is important to decrease the contact resistance and investigate the critical influence factors such as the contact length and contact force. This study uses nanomanipulation to characterize both the resistance and the force at a CNT/Au side-contact interface...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2017
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.119.207701