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Controlling the Electrical Behavior of Semiconducting Carbon Nanotubes via Tube Contact
Author(s) -
Barboza Ana Paula M.,
Carara Sabrina S.,
Batista Ronaldo J. C.,
Chacham Helio,
Neves Bernardo R. A.
Publication year - 2012
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201101285
Subject(s) - carbon nanotube , materials science , diamond , nanotechnology , heterojunction , electrical contacts , nanotube , metal , mechanical properties of carbon nanotubes , ab initio , optoelectronics , composite material , metallurgy , physics , quantum mechanics
The electromechanical behavior of single‐walled carbon nanotubes (SWNTs) in contact with different materials is investigated by scanning probe microscopy. An anomalous diamond/semiconducting nanotube behavior is observed, which is consistent with ab initio calculations: the formation of a broken‐gap heterojunction between semiconducting SWNTs and a hydrogenated diamond surface results in a metallic response for such SWNTs.