Max C. Lemme (RWTH Aachen University and AMO GmbH)

Title: 2-Dimensional Materials as Enablers of Autonomous Sensor Systems?

Abstract: Two-dimensional (2D) layered materials are defined by the fact that they have covalent chemical bonds in-plane, but much weaker van der Waals bonds to the next 2D layer in the third dimension. This material class is being investigated intensely for applications in electronics, optoelectronics and sensing, because of their (sometimes) exceptional properties. Here, I will provide a brief overview of sensor device options with superior performance compared to the state of the art. I will also touch upon opportunities for high frequency 2D electronics, which may be suitable for wireless sensor-node communications. 2D materials have further shown memristive behavior, which could lead to neuromorphic computing hardware that may enable sensor fusion and energy efficient data processing at the sensor node. Even energy harvesting and storage may be possible in a 2D materials-based sensor system, and this will be demonstrated with several examples. Finally, I will describe some of the bottlenecks in 2D material manufacturing technology that currently prevent industrial uptake.

Short Bio: Prof. Max C. Lemme is Full Professor at RWTH Aachen University and Scientific Director of AMO GmbH, a nanotechnology company in Aachen, Germany. He is a co-founder of Black Semiconductor GmbH, Aachen. He obtained his PhD degree from RWTH Aachen in 2004. He has worked in the field of nano-CMOS devices, including FinFETs and SOI-MOSFETs, high-k /metal gate stacks, graphene and 2D materials and Perovskites. The work includes the world’s first top-gated graphene MOSFET, graphene-based non-volatile memory, vertical graphene hot electron transistors, graphene NEMS, ion-based memristive switches from molybdenum disulfide and silicon photonics-integrated Perovskite Lasers. He received the “NanoFutur” young researchers’ award from the German Ministry for Education and Research in 2006 and a Lynen Research Fellowship from the Alexander von Humboldt Foundation in 2007. From 1998 to 2008, he worked at AMO, where his last position was as Head of the Technology Department. In 2008, he joined Harvard University in Cambridge, USA, where he pioneered a helium ion-based nanolithography method for graphene and investigated graphene photodetectors. In September 2010, he became Guest Professor at KTH, where he initiated the graphene activities within the School of ICT. He received an ERC Starting Grant in 2012 and became Heisenberg Professor at the University of Siegen in Germany in the same year. In February 2017, Prof. Lemme was appointed Full Professor at RWTH Aachen University and Scientific Director of AMO GmbH. In 2018, he received an ERC Proof of Concept grant. He has managed numerous national and international research projects with academic and industrial partners. His current research interests include electronic, optoelectronic and nanoelectromechanical devices and sensors made from novel materials like graphene and related 2-D materials, Perovskites or phase change materials and their integration into the silicon technology platform. Recently, his research interests include materials and electronic devices for neuromorphic computing. Lemme is coordinator of the Cluster “NeuroSys – Neuromorphic Computing for Autonomous Artificial Intelligence Systems”, which is funded by the German Ministry of Education and Research.