139 citations · 394 across the 9 of their papers we have counts for
9 papers
Deterministic Deposition of Nanoparticles with Sub-10 nm Resolution
Stefan Fringes, Christian Schwemmer, Colin D. Rawlings +1
Accurate deposition of nanoparticles at defined positions on a substrate is still a challenging task, because it requires simultaneously stable long-range transport and attraction…
Nanofluidic Rocking Brownian Motors
Michael J. Skaug, Christian Schwemmer, Stefan Fringes +2
Control and transport of nanoscale objects in fluids is challenging because of the unfavorable scaling of most interaction mechanisms to small length scales. We design energy lands…
Experimental observation of current reversal in a rocking Brownian motor
Christian Schwemmer, Stefan Fringes, Urs Duerig +2
A reversal of the particle current in rocking Brownian motors was predicted more than 20 years ago; however, an experimental verification and a deeper insight into the underlying m…
The Nanofluidic Confinement Apparatus: Studying confinement dependent nanoparticle behavior and diffusion
Stefan Fringes, Felix Holzner, Armin W. Knoll
We present a versatile setup for investigating the nanofluidic behavior of nanoparticles as a function of the gap distance between two confining surfaces. The setup is designed as…
In-situ contrast calibration to determine the height of individual diffusing nanoparticles in a tunable confinement
Stefan Fringes, Michael Skaug, Armin W. Knoll
We study the behavior of charged spherical Au nanoparticles in a nanofluidic slit as a function of the separation of the symmetrically charged confining surfaces. A dedicated setup…
Probing relaxation times in graphene quantum dots
Christian Volk, Christoph Neumann, Sebastian Kazarski +5
Graphene quantum dots are attractive candidates for solid-state quantum bits. In fact, the predicted weak spin-orbit and hyperfine interaction promise spin qubits with long coheren…
Charge detection in a bilayer graphene quantum dot
Stefan Fringes, Christian Volk, Caroline Norda +5
We show measurements on a bilayer graphene quantum dot with an integrated charge detector. The focus lies on enabling charge detection with a 30 nm wide bilayer graphene nanoribbon…
Tunable capacitive inter-dot coupling in a bilayer graphene double quantum dot
Stefan Fringes, Christian Volk, Bernat Terrés +4
We report on a double quantum dot which is formed in a width-modulated etched bilayer graphene nanoribbon. A number of lateral graphene gates enable us to tune the quantum dot ener…
Electronic Excited States in Bilayer Graphene Double Quantum Dots
Christian Volk, Stefan Fringes, Bernat Terrés +4
We report tunneling spectroscopy experiments on a bilayer graphene double quantum dot device that can be tuned by all-graphene lateral gates. The diameter of the two quantum dots a…