51 citations · 51 across the 1 of their papers we have counts for
5 papers
Tunable graphene phononic crystal
Jan N. Kirchhof, Kristina Weinel, Sebastian Heeg +4
In the field of phononics, periodic patterning controls vibrations and thereby the flow of heat and sound in matter. Bandgaps arising in such phononic crystals realize low-dissipat…
In situ functionalization of graphene
Kyrylo Greben, Sviatoslav Kovalchuk, Ana M. Valencia +7
While the basal plane of graphene is inert, defects in it are centers of chemical activity. An attractive application of such defects is towards controlled functionalization of gra…
Dynamics and efficient conversion of excitons to trions in non-uniformly strained monolayer WS
Moshe G. Harats, Jan N. Kirchhof, Mengxiong Qiao +2
We investigate the transport of excitons and trions in monolayer semiconductor WS subjected to controlled non-uniform mechanical strain. We actively control and tune the strain…
Microstructure and Elastic Constants of Transition Metal Dichalcogenide Monolayers from Friction and Shear Force Microscopy
Xiaomin Xu, Thorsten Schultz, Ziyu Qin +10
Optical and electrical properties of two-dimensional transition metal dichalcogenides (TMDCs) grown by chemical vapor deposition (CVD) are strongly determined by their microstructu…
Detecting Ultrasound Vibrations by Graphene Resonators
G. J. Verbiest, J. N. Kirchhof, J. Sonntag +3
Ultrasound detection is one of the most important nondestructive subsurface characterization tools of materials, whose goal is to laterally resolve the subsurface structure with na…