Energy Dissipation and Transport in Carbon Nanotube Devices

Power consumption is a significant challenge in electronics, often limiting the performance of integrated circuits from mobile devices to massive data centers. Carbon nanotubes have emerged as potentially energy-efficient future devices and interconnects, with both large mobility and thermal conductivity. This talk will focus on understanding and controlling energy dissipation [1-3] and transport [4-6] in carbon nanotubes, with applications to low-energy devices, interconnects, heat sinks, and memory elements [7]. Experiments have been used to gain new insight into the fundamental behavior of such devices, and to better inform practical device models. The results suggest much room for energy optimization in nanoelectronics through the design of geometry, interfaces, and materials. \\[4pt] [1]. E. Pop, ``Energy Dissipation and Transport in Nanoscale Devices,'' Nano Research 3, 147 (2010). \\[0pt] [2]. Z.-Y. Ong and E. Pop, ``Molecular Dynamics Simulation of Interfacial Thermal Resistance between Single-Wall Carbon Nanotubes and SiO2,'' Phys. Rev. B 81, 155408 (2010). \\[0pt] [3]. A. Liao, R. Alizadegan, Z.-Y. Ong, S. Dutta, F. Xiong, K. J. Hsia, E. Pop, ``Thermal Dissipation and Variability in Electrical Breakdown of Carbon Nanotube Devices,'' Phys. Rev. B 82, 205406 (2010). \\[0pt] [4]. A. Liao, Y. Zhao, E. Pop, ``Avalanche-Induced Current Enhancement in Semiconducting Single-Walled Carbon Nanotubes,'' Phys. Rev. Lett. 101, 256804 (2008). \\[0pt] [5]. Y. Zhao, A. Liao, E. Pop, ``Multiband Mobility in Semiconducting Carbon Nanotubes,'' IEEE Elec. Dev. Lett. 30, 1078 (2009). \\[0pt] [6]. D. Estrada, A. Liao, S. Dutta, E. Pop, ``Reduction of Hysteresis for Carbon Nanotube Mobility Measurements Using Pulsed Characterization,'' Nanotechnology 21, 085702 (2010). \\[0pt] [7]. F. Xiong, A. Liao, E. Pop, ``Inducing Chalcogenide Phase Change with Ultra-Narrow Carbon Nanotube Heaters,'' Appl. Phys. Lett. 95, 243103 (2009).