Phys. Rev. Lett. 99, 146802 (2007) [4 pages]Contact Transparency of Nanotube-Molecule-Nanotube JunctionsReceived 21 May 2007; published 2 October 2007 The transparency of contacts between conjugated molecules and metallic single-walled carbon nanotubes is investigated using a single-particle Green’s function method which combines a Landauer approach with ab initio density functional theory. We find that the overall conjugation required for good contact transparency is broken by connecting through a six-member ring on the tube. Full conjugation achieved by an all-carbon contact through a five-member ring leads to near perfect contact transparency for different conjugated molecular bridges. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.99.146802
DOI:
10.1103/PhysRevLett.99.146802
PACS:
73.63.Fg, 73.63.Rt, 85.65.+h
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.