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.
The research interests of Prof. Ingebrandt focus on development of micro- and nanosystems for biomedicine and life sciences, as well as for environmental sensing and industry 4.0 applications. “2D materials are a very promising platform for sensors in general and for bioelectronics in particular”, says Prof. Ingebrandt. “Their unique mechanical and opto-electronical properties and their ultimately scaled surface-to-volume ratio enable new generations of biosensors and of “intelligent” medical implants. It is an exciting research field full of opportunities and challenges. In my group, we are currently investigating graphene and graphene-oxide as transducer materials for biosensors. With the help and the strong expertise of the colleagues in the Center, we aim to expand our activities to other 2D materials and hetero-layers.”
“I am very happy to welcome officially Prof. Ingebrandt into Center”, says Prof. Max Lemme, spokesperson of the Aachen Graphene & 2D Materials Center. “Prof. Ingebrandt brings new expertise and new research lines into our portfolio. Two-dimensional materials are an extremely versatile class of materials – it is beautiful to see this versatility reflected also into the many different research directions pursued at the Center.”
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.
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.
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.
For applications in spin-based electronics and quantum computation, it is crucial to understand quantitively how the electron spin is coupled to the orbital degrees of freedom. In bilayer graphene this is a notoriously difficult task, given the tiny size of the energy scales involved. Researchers from RWTH Aachen University have now managed to accurately measure the spin-orbit coupling in single-electron bilayer graphene quantum dots, exploiting the extreme energy sensitivity of a double-dot device. The result has been reported in Nature Communications.
Researchers from AMO GmbH, Oxford Instruments, Cambridge University, RWTH Aachen University and the University of Wuppertal have demonstrated a new method to use PEALD on graphene without introducing defects into the graphene itself.