Researchers from RWTH Aachen University and the Graphene Flagship Standardization Committee have pushed through a new IEC standard for assessing the strain uniformity of single-layer graphene using Raman spectroscopy.
Continue reading “An international standard for the flatness of graphene”Perspective article in Science by Markus Morgenstern and Mark Goerbig.
Following the recent progresses made by the Yazdani group in visualizing broken symmetries and topological states caused by the interaction between electrons in graphene under high magnetic field [1], Markus Morgenstern and Mark Goerbig have released Perspective article in Science [2], where they review in a very accessible language the basic physics beyond the observed effects.
[1] Visualizing broken symmetry and topological defects in a quantum Hall ferromagnet
X. Liu, G. Farahi, C.-L.Chiu, Z. Papic, K. Watanabe, T. Taniguchi, M. P. Zaletel, and A. Yazdani
Science 375, 321 (2021). DOI: 10.1126/science.abm3770
[2] Many-particle electron states in graphene
M. Morgenstern and M. Goerbig
Science 375, 263 (2022). DOI: 10.1126/science.abn2049
Progress towards flexible, low-power transceivers based on MoS2
Scientists from RWTH Aachen University, AMO GmbH, EPFL and Aixtron SE have demonstrated the first power detectors based on Molybdenum disulphide (MoS2) that operate at zero bias. The fabricated circuits function in Ku-band between 12 and 18GHz, and are the best-performing power detectors fabricated on flexible substrate reported to date. Their dynamic range exceeds 30dB, outperforming other semiconductor technologies, like silicon complementary metal oxide semiconductor (CMOS) circuits and GaAs Schottky diodes.
Continue reading “Progress towards flexible, low-power transceivers based on MoS2”An extensive review on graphene-based microwave circuits
Mohamed Saeed and co-workers have published an extensive review article on graphene-based microwave circuits in the journal Advanced Materials.
Continue reading “An extensive review on graphene-based microwave circuits”Prof. Sven Ingebrandt joins the Aachen Graphene & 2D Materials Center
The Aachen Graphene & 2D Materials center has gained a new member: Prof. Sven Ingebrandt, head of the Chair for Micro- and Nanosystems and of the Institute of Materials in Electrical Engineering 1 (IWE 1) at RWTH Aachen University.
Continue reading “Prof. Sven Ingebrandt joins the Aachen Graphene & 2D Materials Center”Omnipresence of viscous flow in graphene devices
Imaging the complex streaming patterns of electron flow in graphene field-effect transistors, researchers from RWTH Aachen University and AMO GmbH have found evidence for local spots of viscous electron flow even at room temperature in devices with moderate mobility, implying that viscous electron flow is omnipresent in graphene devices. The results have been reported in Nano Letters.
Continue reading “Omnipresence of viscous flow in graphene devices”November Workshop of the Aachen Graphene & 2D Materials Center at SuperC
On November 15-16, 2021, the members of the Aachen Graphene & 2D Materials Center will meet up for an internal workshop, where each group will present and discuss its current research questions and latest results.
Continue reading “November Workshop of the Aachen Graphene & 2D Materials Center at SuperC”Welcome to Ms. Babita Negi
The Aachen Graphene & 2D Materials Center welcomes a new master student from India, Ms. Babita Negi, from the Indian Institute of Technology, Kharagpur.
Continue reading “Welcome to Ms. Babita Negi”A new Erasmus+ fellow joins the Center
The Aachen Graphene & 2D Materials Center welcomes Aniello Pelella, who has just joined the Chair for Electronic devices with an Erasmus+ Traineeship.
Continue reading “A new Erasmus+ fellow joins the Center”A new paradigm of THz-energy harvester based on graphene
Future-shaping concepts such as wearable electronics and the Internet of Things are driving the quest for low-power electronics and for energy harvesting at the device or at chip level. Researchers from AMO GmbH, RWTH Aachen University, Chalmers University and the University of Wuppertal have now developed a novel type of flexible energy harvester, which shows good prospects for powering wearable and conformal devices.
Continue reading “A new paradigm of THz-energy harvester based on graphene”