526 citations · 1.3k across the 6 of their papers we have counts for
6 papers
UV/Ozone treatment to reduce metal-graphene contact resistance
Wei Li, Yiran Liang, Dangmin Yu +10
We report reduced contact resistance of single-layer graphene devices by using ultraviolet ozone (UVO) treatment to modify the metal/graphene contact interface. The devices were fa…
High charge-carrier mobility and low trap density in a rubrene derivative
S. Haas, A. F. Stassen, G. Schuck +5
We have synthesized, crystallized and studied the structural and electric transport properties of organic molecular crystals based on a rubrene derivative with {\em t}-butyl sidegr…
Density of bulk trap states in organic semiconductor crystals: discrete levels induced by oxygen in rubrene
C. Krellner, S. Haas, C. Goldmann +3
The density of trap states in the bandgap of semiconducting organic single crystals has been measured quantitatively and with high energy resolution by means of the experimental me…
Threshold Voltage Shift in Organic Field Effect Transistors by Dipole-Monolayers on the Gate Insulator
K. P. Pernstich, A. N. Rashid, S. Haas +5
We demonstrate controllable shift of the threshold voltage and the turn-on voltage in pentacene thin film transistors and rubrene single crystal field effect transistors (FET) by t…
Hole mobility in organic single crystals measured by a "flip-crystal" field-effect technique
C. Goldmann, S. Haas, C. Krellner +3
We report on single crystal high mobility organic field-effect transistors (OFETs) prepared on prefabricated substrates using a "flip-crystal" approach. This method minimizes cryst…
Field-induced charge transport at the surface of pentacene single crystals: a method to study charge dynamics of 2D electron systems in organic crystals
J. Takeya, C. Goldmann, S. Haas +3
A method has been developed to inject mobile charges at the surface of organic molecular crystals, and the DC transport of field-induced holes has been measured at the surface of p…