Aachen Graphene Center Seminars


07.02.2024 – Physik Hörsaal | 12:00

10.01.2024 – Physik Hörsaal | 12:00


06.12.2023 – Physik Hörsaal | 12:00

08.11.2023 – Physik Hörsaal | 12:00
Prof. David Goldhaber-Gordon (Stanford University)

28.10.2023 – Physik Hörsaal | 12:00
Prof. Bart Macco (Eindhoven University of Technology)

Atomic-Scale Processing for Future Semiconductor Devices

Atomic-Scale Processing (ASP) is a toolbox to deposit or etch films at the atomic scale. It started mostly with atomic layer deposition (ALD), but insights have advanced this to new concepts, including atomic layer etching (ALE) and area-selective deposition (ASD). Together with EUV, this toolbox has really enabled the last few chip nodes and is driving next generation nanoelectronics. But ASP is also gaining ground in solar, batteries, memory, … In our group in Eindhoven, we focus on mechanistic research of ASP: How the interaction of precursors, ions and photons with surfaces leads to film deposition and resulting film properties. This is often done using in-situ studies, while we mostly validate our films in devices through collaborations. My own research within the group is focused on ASP for future semiconductor devices, focusing on 2D TMDs, amorphous oxide semiconductors and fluorite ferroelectrics.

Aiming to complement my materials-based research, I am currently on a sabbatical at AMO in Aachen to learn more about the device processing side of semiconductor devices. In return, in this seminar I want to give a comprehensive introductory overview of what atomic-scale processing is. I will start “tutorial-like” at the basics of ALD, moving to the concept of ALE and ASD. I will cherry-pick a few of our recent in-situ studies and focus on the main practical insights we got from that. In the end, I will focus on my own research on ALD for 2D TMDs and amorphous oxide semiconductors.

As a last point to mention, I hope that by giving an overview of what we do in Eindhoven, this seminar might spark some ideas for further collaboration!

04.07.2023 – Physik Hörsaal | 12:30
Prof. Yong P. Chen (Purdue University & Aarhus University)
Van der Waals Magnets based Heterostructures: platforms to engineer and probe novel magnetism

06.06.2023 – Physik Hörsaal | 12:30
Prof. Dr. Subho Dasgupta (Indian Institute of Science, Bangalore)
Printed 2D electronics with predominant intra flake transport

16.05.2023 – Physik Hörsaal | 12:30
Prof. Pawel Hawrylak (University of Ottawa)
Dirac Fermions in quantum dots in 2D materials

14.02.2023 – Physik Hörsaal | 12:00 noon
Prof. Ermin Malic (Philipps-Universität Marburg)
Exciton optics, dynamics, and transport in atomically thin materials

03.02.2023 – Physik Hörsaal | 4:00 p.m.
Prof. Jose A. Garrido (ICN2, ICREA, Spain)
Opportunities and Challenges of Graphene Neurotechnology in Neuroscience and Medical Applications


19.12.2022 – Physik Hörsaal *** Physics Colloquium Talk ***
Prof. Dmitri K. Efetov (Ludwig-Maximilians-Universität München)
Plethora of Many-Body Ground States in Magic Angle Twisted Bilayer Graphene

08.11.2022 – Physik Hörsaal
Prof. Silvia Viola Kusminskiy (RWTH Aachen University)
Light-matter interaction in antiferromagnets: probing and controlling antiferromagnetic magnons with optical photons

18.10.2022 – Physikzentrum, room 28A301 (Seminar Room II Institute of Physics) | 11:30
Prof. Afif Siddiki (Instambul University)
The local incompressibility of quantized Hall effects

14.10.2022 – Physik Hörsaal | 16:00
Prof. Yuhei Hayamizu (Tokyo Institute of Technology)
Self-assembled peptides for surface functionalization of 2D materials

11.10.2022 – Physik Hörsaal
Prof. Steven Koester (University of Minnesota & Theodore von Kármán Fellow at RWTH)
Enhancing Biosensor Response with Graphene “Lighting-Rods”

13.09.2022 – Physikzentrum, room 28A301 (Seminar Room II Institute of Physics) | 12:30
Dr. Jens Martin (Leibniz-Institut für Kristallzüchtung (IKZ) in Berlin)
“New perspectives on Layer Transfer and Artificial Crystalline Heterostructures”

04.07.2022 – ICT cube – Seminarraum 002 | 2:00 p.m.
Prof. Taiichi Otsuji (Research Institute of Electrical Communication, Tohoku University)
“Graphene Dirac plasmons for terahertz lasers, amplifiers, and detectors”

01.02.2022 – Online
Dr. Alwin Daus (Chair of Electronic Devices, RWTH Aachen University)
Flexible Electronics with Two-Dimensional and Layered Chalcogenide Compounds


09.11.2021 – Hybrid
Dr. Rebeca Ribeiro-Palau ( Université Paris-Saclay and CNRS, Centre de Nanosciences et de Nanotechnologies – C2N)
“Tunable valley currents in aligned bilayer graphene/BN”

05.10.2021 – Hybrid
Prof. Barış Şimşek, (Çankırı Karatekin University, Turkey)
“Optimum AgNPs-assisted Graphene Inks Coating on PVA-based Self-Healing Polymer Substrate with Nanostructures for Flexible Electronics”

04.05.2021 – Online
Nishta Arora, (Indian Institute of  Science in Bangalore & ELD, RWTH Aachen Universiity)
“Tuning Nonlinearities and Modal Coupling in Two Dimensional Electromechanical Resonators”

26.01.2021 – Online
Ellie Galanis & Jemma Allan (Paragraf)
“Developing and delivering graphene electronic devices at commercial quality and scale, starting with a graphene Hall effect sensor”


06.10.2020  –  Online 
Prof. Thomas Muelller (Vienna University of Technology)
“Ultrafast machine vision with 2D semiconductor photodiode arrays”

26.05.2020  –  Online 
Prof. Stephan Hofmann (Departement of Engineering, University of Cambridge, UK)
“On the Fundamental Mechanisms that underpin CVD Technology for Atomically Thin 2D Films”

Prof. Sergio O. Valenzuela
“Spin-orbit proximity phenomena and tunable spin-to-charge conversion in graphene”

Prof. Tomas Palacios (Massachusetts Institute of Technology)
“The Graphene Revolution: From Transistors to Synthetic Cells”

Prof. Barbaros Oezyilmaz (Centre for Advanced 2D materials, National University of Singapore)
“2D Amorphous Materials and other Research Efforts at the Centre for Advanced 2D Materials”

2 0 1 9

Dr. Lutz Waldecker (Dept. of Applied Physics, Stanford University, Stanford, USA)
“Dielectric screening and many-body interactions in 2D Semiconductors”

Dr. Mohammed Elsayed (RWTH Aachen)
“Thin-film Technology for Graphene-based Electronic Devices and Circuits”

Prof. Frank Schwierz (Technische Universität TU, Ilmenau, Germany)
” 2D Electronics – Opportunities and Challenges”

Prof. Tibor Grasser (Institute for Microelectronics, TU Wien, Austria)
“CaF2 Insulators for Ultrascaled 2D Field Effect Transistors”

Dr. Assaf Ya’akobovitz (Ben-Gurion University of the Negev, Israel)
“Electromechanical Behavior of Carbon Based Nano-Materials”

Dr. Sayanti Samaddar (2nd Institute of Physics, RWTH Aachen)
“Disorder induced Hydrodynamics in Graphene close to Charge Neutrality probed by Kelvin Probe Force Microscopy”

Dr. Angelika Knothe (Manchester University, UK)
“Electrostatically confined nanostructures in gaaped bilayer graphene”

Prof. Florian Libisch (TU Vienna, Austria)
“Nonlinear optics in two-dimensional materials”

Dr. Manohar Kumar (Laboratoire Pierre Aigrain Paris, France)
“Solidification of electrons in the flatland”

2 0 1 8

Dr. Daniel Schall (AMO GmbH Aachen)
“Graphene Photonics for Ultrafast Optical Communication”

Dr. Robin Dolleman (Faculty of Applied Sciences, TU Delft)
“Dynamics of interacting graphene membranes”

Dr. Inessa Bolshakova (Lviv Polytechnic Natianl University, Lviv, Ukraine)
“Development of radiation-resistant magnetic field sensors for fusion reactors”

15.06.2018, 13 bis 14 Uhr, Raum S3
Dr. Shu Nakaharai (NIMS & MANA)
“Polaritätskontrollierbare Transistoren auf 2D-Materialien”

Prof. Kirill Bolotin (FU Berlin)
“Bending, pulling, and cutting wrinkled two-dimensional materials”

Prof. Peter Bøggild (CNG-Center of Nanostructured Graphene, DTU Denmark)
“Graphene at the edge of perfection”

Dr. Gerard Verbiest (2nd Institute of Physics, RWTH Aachen)
“A graphene-based broadband displacement detector with pm resolution and its applications”

Dr. Zhenxing Wang (AMO GmbH)

“Graphene based diodes and integrated circuits for RF applications”

Stefan Wagner (Chair for Electronic devices, RWTH Aachen)
“Piezoresistive 2D material based nanoelectromechanical devices for strain sensing”

 2 0 1 7

Dr. Jens Sonntag (2nd Institute of Physics, RWTH Aachen)
“Impact of Many-Body Effects on Landau Levels in Graphene”