223 citations · 658 across the 8 of their papers we have counts for
7 papers · 1 filter
Effects of Tip-Nanotube Interactions on Atomic Force Microscopy Imaging of Carbon Nanotubes
Rouholla Alizadegan, Albert D. Liao, Feng Xiong +2
We examine the effect of van der Waals (vdW) interactions between atomic force microscope (AFM) tips and individual carbon nanotubes (CNTs) supported on SiO2. Molecular dynamics (M…
Electrical power dissipation in carbon nanotubes on single crystal quartz and amorphous SiO2
Cheng-Lin Tsai, Albert Liao, Eric Pop +1
Heat dissipation in electrically biased semiconducting carbon nanotubes (CNTs) on single crystal quartz and amorphous SiO2 is examined with temperature profiles obtained by spatial…
Thermally-Limited Current Carrying Ability of Graphene Nanoribbons
Albert D. Liao, Justin Z. Wu, Xinran Wang +4
We investigate high-field transport in graphene nanoribbons (GNRs) on SiO2, up to breakdown. The maximum current density is limited by self-heating, but can reach >3 mA/um for GNRs…
Thermal Dissipation and Variability in Electrical Breakdown of Carbon Nanotube Devices
Albert Liao, Rouholla Alizadegan, Zhun-Yong Ong +3
We study high-field electrical breakdown and heat dissipation from carbon nanotube (CNT) devices on SiO2 substrates. The thermal "footprint" of a CNT caused by van der Waals intera…
Reduction of Hysteresis for Carbon Nanotube Mobility Measurements Using Pulsed Characterization
David Estrada, Sumit Dutta, Albert Liao +1
We describe a pulsed measurement technique to suppress hysteresis for carbon nanotube (CNT) device measurements in air, vacuum, and over a wide temperature range (80-453 K). Varyin…
Multi-Band Mobility in Semiconducting Carbon Nanotubes
Y. Zhao, A. Liao, E. Pop
We present new data and a compact mobility model for single-wall carbon nanotubes, with only two adjustable parameters, the elastic and inelastic collision mean free paths at 300 K…
Avalanche-Induced Current Enhancement in Semiconducting Carbon Nanotubes
Albert Liao, Yang Zhao, Eric Pop
Semiconducting carbon nanotubes under high electric field stress (~10 V/um) display a striking, exponential current increase due to avalanche generation of free electrons and holes…