85 citations · 190 across the 9 of their papers we have counts for
9 papers
Scalable fabrication of edge contacts to 2D materials
Naveen Shetty, Hans He, Richa Mitra +9
We present a fabrication method for reliably and reproducibly forming electrical contacts to 2D materials, based on the tri-layer resist system. We demonstrate the applicability of…
Highly efficient UV detection in a metal-semiconductor-metal detector with epigraphene
Hans He, Naveen Shetty, Sergey Kubatkin +7
We show that epitaxial graphene on silicon carbide (epigraphene) grown at high temperatures (T > 1850 °C) readily acts as material for implementing solar-blind ultraviolet (UV) det…
Exceptionally accurate large graphene quantum Hall arrays for the new SI
Hans He, Karin Cedergren, Naveen Shetty +4
The quantum Hall effect (QHE) is a cornerstone in the new International System of Units (SI), wherein the base units are derived from seven fundamental constants such as Planck's c…
Electron-phonon coupling of epigraphene at millikelvin temperatures
Bayan Karimi, Hans He, Yu-Cheng Chang +7
We investigate the basic charge and heat transport properties of charge neutral epigraphene at sub-kelvin temperatures, demonstrating nearly logarithmic dependence of electrical co…
Ambipolar charge transport in quasi-free-standing monolayer graphene on SiC obtained by gold intercalation
Kyung Ho Kim, Hans He, Claudia Struzzi +6
We present a study of quasi-free-standing monolayer graphene obtained by intercalation of Au atoms at the interface between the carbon buffer layer (Bu-L) and the silicon-terminate…
The performance limits of epigraphene Hall sensors
Hans He, Naveen Shetty, Thilo Bauch +5
Epitaxial graphene on silicon carbide, or epigraphene, provides an excellent platform for Hall sensing devices in terms of both high electrical quality and scalability. However, th…
Chemical sensing with atomically-thin metals templated by a two-dimensional insulator
Kyung Ho Kim, Hans He, Marius Rodner +8
Boosting the sensitivity of solid-state gas sensors by incorporating nanostructured materials as the active sensing element can be complicated by interfacial effects. Interfaces at…
Towards quantum-limited coherent detection of terahertz waves in charge-neutral graphene
S. Lara-Avila, A. Danilov, D. Golubev +7
Spectacular advances in heterodyne astronomy with both the Herschel Space Observatory and Stratospheric Observatory for Far Infrared Astronomy (SOFIA) have been largely due to brea…
Uniform doping of graphene close to the charge neutrality point by polymer-assisted spontaneous assembly of molecular dopants
Hans He, Kyung Ho Kim, Andrey Danilov +12
Tuning the charge carrier density of two-dimensional (2D) materials by incorporating dopants into the crystal lattice is a challenging task. An attractive alternative is the surfac…