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Engineering thermal transport across layered graphene-MoS2 superlattices
Aditya Sood, Charles Sievers, Yong Cheol Shin +7
Layering two-dimensional van der Waals materials provides unprecedented control over atomic placement, which could enable tailoring of vibrational spectra and heat flow at the sub-…
Quasi-ballistic thermal transport across MoS thin films
Aditya Sood, Feng Xiong, Shunda Chen +7
Layered two-dimensional (2D) materials have highly anisotropic thermal properties between the in-plane and cross-plane directions. In general, it is thought that cross-plane therma…
Direct Visualization of Thermal Conductivity Suppression Due to Enhanced Phonon Scattering Near Individual Grain Boundaries
Aditya Sood, Ramez Cheaito, Tingyu Bai +9
Understanding the impact of lattice imperfections on nanoscale thermal transport is crucial for diverse applications ranging from thermal management to energy conversion. Grain bou…
Temperature Dependent Thermal Boundary Conductance of Monolayer MoS by Raman Thermometry
Eilam Yalon, Özgür Burak Aslan, Kirby K. H. Smithe +9
The electrical and thermal behavior of nanoscale devices based on two-dimensional (2D) materials is often limited by their contacts and interfaces. Here we report the temperature-d…
Enhanced thermal conduction through nanostructured interfaces
Woosung Park, Aditya Sood, Joonsuk Park +3
Interfaces dominate heat conduction in nanostructured systems, and much work has focused on methods to enhance interfacial conduction. These approaches generally address planar int…
Electrical and Thermal Transport in Metallic Single-Wall Carbon Nanotubes on Insulating Substrates
Eric Pop, David Mann, Kenneth Goodson +1
We analyze transport in metallic single-wall carbon nanotubes (SWNTs) on insulating substrates over the bias range up to electrical breakdown in air. To account for Joule self-heat…
Thermally and Molecularly Stimulated Relaxation of Hot Phonons in Suspended Carbon Nanotubes
David Mann, Eric Pop, Jien Cao +3
The high-bias electrical transport properties of suspended metallic single-walled carbon nanotubes (SWNTs) are investigated at various temperatures in vacuum, in various gases and…
Thermal Conductance of an Individual Single-Wall Carbon Nanotube above Room Temperature
Eric Pop, David Mann, Qian Wang +2
The thermal properties of a suspended metallic single-wall carbon nanotube (SWNT) are extracted from its high-bias (I-V) electrical characteristics over the 300-800 K temperature r…
Temperature and Gas-Environment Dependent Electron and Phonon Transport in Suspended Carbon Nanotubes Up to Electrical Breakdown
David Mann, Eric Pop, Jien Cao +3
High bias electrical transport characteristics of freely suspended metallic single-walled carbon nanotubes (SWNTs) are investigated at 250-400K in vacuum and various gases. Self-he…
Negative Differential Conductance and Hot Phonons in Suspended Nanotube Molecular Wires
Eric Pop, David Mann, Jien Cao +3
Freely suspended metallic single-wall carbon nanotubes (SWNTs) exhibit reduced current carrying ability compared to those lying on substrates, and striking negative differential co…