188 citations · 337 across the 9 of their papers we have counts for
9 papers
Optimization of epitaxial graphene growth for quantum metrology
Davood Momeni Pakdehi
(See the complete abstract within the thesis in both English and German versions) In this thesis, the process conditions of the epitaxial graphene growth through a socalled polymer…
Direct Access to Auger recombination in Graphene
Marius Keunecke, David Schmitt, Marcel Reutzel +15
Auger scattering channels are of fundamental importance to describe and understand the non-equilibrium charge carrier dynamics in graphene. While impact excitation increases the nu…
Silicon carbide stacking-order-induced doping variation in epitaxial graphene
Davood Momeni Pakdehi, Philip Schädlich, T. T. Nhung Nguyen +7
Generally, it is supposed that the Fermi level in epitaxial graphene is controlled by two effects: p-type polarization doping induced by the bulk of the hexagonal SiC(0001) substra…
Traceably Calibrated Scanning Hall Probe Microscopy at Room Temperature
Manuela Gerken, Aurélie Solignac, Davood Momeni Pakdehi +5
Fabrication, characterization and comparison of gold and graphene micro- and nano-size Hall sensors for room temperature scanning magnetic field microscopy applications is presente…
Substrate induced nanoscale resistance variation in epitaxial graphene
Anna Sinterhauf, Georg Alexander Traeger, Davood Momeni Pakdehi +8
Graphene, the first true two-dimensional material still reveals the most remarkable transport properties among the growing class of two-dimensional materials. Although many studies…
Homogeneous Large-area Quasi-freestanding Monolayer and Bilayer Graphene on SiC
Davood Momeni Pakdehi, Klaus Pierz, Stefan Wundrack +9
In this study, we first show that the argon flow during epitaxial graphene growth is an important parameter to control the quality of the buffer and the graphene layer. Atomic forc…
Tailoring the SiC surface - a morphology study on the epitaxial growth of graphene and its buffer layer
Mattias Kruskopf, Klaus Pierz, Davood Momeni Pakdehi +4
We investigate the growth of the graphene buffer layer and the involved step bunching behavior of the silicon carbide substrate surface using atomic force microscopy. The formation…
Comeback of epitaxial graphene for electronics: large-area growth of bilayer-free graphene on SiC
Mattias Kruskopf, Davood Momeni Pakdehi, Klaus Pierz +12
We present a new fabrication method for epitaxial graphene on SiC which enables the growth of ultra-smooth defect- and bilayer-free graphene sheets with an unprecedented reproducib…
Design and Realization of an S-Band Microwave Low-Noise Amplifier for Wireless RF Subsystems
Ardavan Rahimian, Davood Momeni Pakdehi
This study undertakes the theoretical design, CAD modeling, realization, and performance analysis of a microwave low-noise amplifier (LNA) which has been accurately developed for o…