One of the challenges encountered by research on novel electronic devices is to compare devices based on different materials in a consistent way. RWTH Professor Max Lemme and colleagues from USA, China, and Belgium have now proposed a set of clear guidelines for benchmarking key parameters and performance metrics of emergent field-effect transistors. The guidelines have been published as a Perspective Article in Nature Electronics. [read more »]
Stability – in the sense of stable operation thorough lifetime – is one of the key characteristics that an electronic device need to present to be suitable for applications. And it is the Achilles heel of transistors based on two-dimensional materials, which typically show much worse stability than devices based on silicon. A team of researchers from TU Wien, AMO GmbH, RWTH Aachen University and Wuppertal University has now demonstrated a novel engineering approach to enhance the electrical stability of two-dimensional transistors by carefully tuning the Fermi energy. The results have been reported in Nature Electronics. [read more »]
In a compact comment published in Nature Communications, Max Lemme and colleagues outline the most promising fields of applications of two-dimensional (2D) materials, as well as the challenges that still need to be solved to see the appearance of high-tech products enabled by 2D-materials. [read more »]
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. [read more »]
One thing that has become clear in the last decade of graphene research is that it is necessary to protect the surface of graphene from external contaminants, to preserve its exceptional electronic properties and be able to exploit them into novel devices. The depositions of dielectric materials on top of graphene is therefore an essential step of manufacturing graphene-based electronic and photonic devices. [read more »]
Two-dimensional (2D) materials have a huge potential for providing devices with much smaller size and extended functionalities with respect to what can be achieved with today’s silicon technologies. But to exploit this potential we must be able to integrate 2D materials into semiconductor manufacturing lines – a notoriously difficult step. A team of researchers from Sweden and Germany now reports a new method to make this work.
Researchers from AMO GmbH, ICFO- Institut de Ciencies Fotoniques, RWTH Aachen University, and Bergishe Universität Wuppertal have developed a novel approach for graphene-based photodetectors that allows combining high responsivity and low power consumption, thus circumventing one of the major limitations of state-of-the-art photodetectors based on graphene – namely the high power-consumption caused by their large dark currents. [read more »]
Researchers from TU Wien, AMO GmbH, University of Pisa and Wuppertal University have realized the first operational amplifier based on the two-dimensional semiconductor MoS2, reaching a key milestone towards the vision of a flexible electronics all based on two dimensional materials. This result has just appeared in the journal Nature Electronics.
Max Lemme and co-workers have recently published a review article on nanoelectromechanical (NEMS) sensors based on suspended two-dimensional (2D) materials in the journal RESEARCH, an open-access multidisciplinary journal launched in 2018 as the first journal in the Science Partner Journal (SPJ) program. The paper is an invited contribution to a special issue on “Progress and challenges in emerging 2D nanomaterials – preparation, processing, and device integration”, and has the purpose of contributing to the development of the field of 2D materials for sensor applications and to their integration with conventional semiconductor technology. [read more »]
A review article on one of the most delicate issues of future electronics based on 2D materials
A team of scientists led by Tibor Grasser and Yuri Illarionov of TU Wien, including RWTH Professor and AMO Director Max Lemme, has published an extensive review of the current search for suitable insulators for two-dimensional (2D) nanoelectronics in Nature Communications.