2011/12/12 by J. O. Island, Joshua O. Island, V. Tayari +4 · 14 citations
Engineering · Materials Science · Physics and Astronomy · #Carbon Nanotubes in Composites #Carbon nanotube #Composite material #Coulomb blockade #Coupling (piping) #Electromigration #Electron #Materials science #Molecular Junctions and Nanostructures #Nanotechnology #Optoelectronics #Physics #Quantum and electron transport phenomena #Transistor #cond-mat.mes-hall #cond-mat.mtrl-sci
paper · pdf · doi:10.1063/1.3670055
published in Applied Physics Letters 99(24) (American Institute of Physics)
openalex publication_date 2011/12/12 · arxiv created 2011/12/15 · arxiv updated 2012/08/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We describe a method to fabricate clean suspended single-wall carbon nanotube (SWCNT) transistors hosting a single quantum dot ranging in length from a few 10 s of nm down to ≈3 nm. We first align narrow gold bow-tie junctions on top of individual SWCNTs and suspend the devices. We then use a feedback-controlled electromigration to break the gold junctions and expose nm-sized sections of SWCNTs. We measure electron transport in these devices at low temperature and show that they form clean and tunable single-electron transistors. These ultra-short suspended transistors offer the prospect of studying THz oscillators with strong electron-vibron coupling.