• Publications
  • Influence
Thermal transport measurements of individual multiwalled nanotubes.
The thermal conductivity and thermoelectric power of a single carbon nanotube were measured using a microfabricated suspended device and shows linear temperature dependence with a value of 80 microV/K at room temperature.
Electromechanical Resonators from Graphene Sheets
The thinnest resonator consists of a single suspended layer of atoms and represents the ultimate limit of two-dimensional nanoelectromechanical systems and is demonstrated down to 8 × 10–4 electrons per root hertz.
Impermeable atomic membranes from graphene sheets.
This pressurized graphene membrane is the world's thinnest balloon and provides a unique separation barrier between 2 distinct regions that is only one atom thick.
A tunable carbon nanotube electromechanical oscillator
The electrical actuation and detection of the guitar-string-like oscillation modes of doubly clamped nanotube oscillators are reported and it is shown that the resonance frequency can be widely tuned and that the devices can be used to transduce very small forces.
Single-walled carbon nanotube electronics
Single-walled carbon nanotubes (SWNTs) have emerged as a very promising new class of electronic materials. The fabrication and electronic properties of devices based on individual SWNTs are reviewed.
Mechanical properties of suspended graphene sheets
Using an atomic force microscope, we measured effective spring constants of stacks of graphene sheets (less than 5) suspended over photolithographically defined trenches in silicon dioxide.
Grains and grain boundaries in single-layer graphene atomic patchwork quilts
This work determines the location and identity of every atom at a grain boundary and finds that different grains stitch together predominantly through pentagon–heptagon pairs, and reveals an unexpectedly small and intricate patchwork of grains connected by tilt boundaries.
Electron-Phonon Scattering in Metallic Single-Walled Carbon Nanotubes
Electron scattering rates in metallic single-walled carbon nanotubes are studied using an atomic force microscope as an electrical probe. From the scaling of the resistance of the same nanotube with
Nanomechanical oscillations in a single-C60 transistor
Transport measurements are performed that provide evidence for a coupling between the centre-of-mass motion of the C60 molecules and single-electron hopping—a conduction mechanism that has not been observed previously in quantum dot studies.
Large-scale arrays of single-layer graphene resonators.
These measurements show that it is possible to produce large arrays of CVD-grown graphene resonators with reproducible properties and the same excellent electrical and mechanical properties previously reported for exfoliated graphene.