138 citations · 193 across the 4 of their papers we have counts for
8 papers · 1 filter
Exciton-assisted electron tunneling in van der Waals heterostructures
Lujun Wang, Sotirios Papadopoulos, Fadil Iyikanat +8
The control of elastic and inelastic electron tunneling relies on materials with well defined interfaces. Van der Waals materials made of two-dimensional constituents form an ideal…
Overbias photon emission from light-emitting devices based on monolayer transition metal dichalcogenides
Shengyu Shan, Jing Huang, Sotirios Papadopoulos +5
Tunneling light-emitting devices (LEDs) based on transition metal dichalcogenides (TMDs) and other 2D materials are a new platform for on-chip optoelectronic integration. Some of t…
Energy transfer from tunneling electrons to excitons
Sotirios Papadopoulos, Lujun Wang, Takashi Taniguchi +2
Excitons in optoelectronic devices have been generated through optical excitation, external carrier injection, or employing pre-existing charges. Here, we reveal a new way to elect…
Compact SQUID realized in a double layer graphene heterostructure
David I. Indolese, Paritosh Karnatak, Artem Kononov +7
Two-dimensional systems that host one-dimensional helical states are exciting from the perspective of scalable topological quantum computation when coupled with a superconductor. G…
Out-of-plane corrugations in graphene based van der Waals heterostructures
Simon Zihlmann, Péter Makk, Mirko K. Rehmann +7
Two dimensional materials are usually envisioned as flat, truly 2D layers. However out-of-plane corrugations are inevitably present in these materials. In this manuscript, we show…
Mobility enhancement in graphene by in situ reduction of random strain fluctuations
Lujun Wang, Péter Makk, Simon Zihlmann +5
Microscopic corrugations are ubiquitous in graphene even when placed on atomically flat substrates. These result in random local strain fluctuations limiting the carrier mobility o…