Semiconductors from the Flatlands

Event details
Date | 29.09.2016 |
Hour | 17:15 |
Speaker | Prof. Andras Kis, Institute of Electricity and Institute of Materials Science, EPFL |
Location | |
Category | Inaugural lectures - Honorary Lecture |
INAUGURAL LECTURE
Abstract:
Semiconductors are an essential class of materials being behind many of the technological advances that marked the development of electronics and the related semiconductor industry. The development of new semiconducting materials could be one solution to a problem plaguing the semiconductor industry today: that of rising heat dissipation in transistors in microchips, which led to computer speeds increasing at a much slower pace today than 10-15 years ago.
The so-called two-dimensional materials could be especially interesting in this context. They consist of single planes extracted from crystals of layered materials. Since the thickness of these planes is smaller than 1 nm and is usually on the scale of 1-3 atoms, two-dimensional materials represent the ultimate limit of miniaturization in the vertical dimension.
The first two-dimensional material under intense study was graphene, a single layer of graphite, made popular by a series of breakthroughs in 2004 and 2005. In spite of initial optimism, researchers are still looking for practical applications of this material, especially in the context of electronics where the lack of a band gap, a defining feature of semiconductors, made graphene much less interesting than initially thought. In 2010 my group made a breakthrough in this field by using a single layer of molybdenum disulphide (MoS2), a true 2D semiconductor, to realize the first transistor based on semiconducting single layers. This opened the way to exploring the science and application of a broad range of 2D semiconducting materials which were initially overlooked. Some of these materials and their uses in integrate circuits, memory elements, photodetectors and light emitting devices will be presented.
Program:
- Introduction by Prof. Demetri Psaltis, Dean of the Faculty of Engineering
- Inaugural lecture of Prof. Andras Kis, "Semiconductors from the Flatlands"
Please register here : http://go.epfl.ch/andraskis
Bio: Andras Kis received his master¹s degree in physics from the University of Zagreb in 1999. He joined the group of Prof. László Forró at EPFL where he earned his PhD in 2003 for which he was awarded the Latsis prize in 2004. Between 2004 and 2007, he was working as a postdoctoral researcher at the University of California, Berkeley, in the group of Prof. Alex Zettl. In 2008 he joined EPFL as an Assistant Professor of Electrical Engineering and was promoted to an associate Professor in 2015. He is a recipient of two ERC grants: a Starting grant in 2009 and a Consolidator grant in 2015. His group is interested in fundamental properties and practical applications of 2D materials.
Abstract:
Semiconductors are an essential class of materials being behind many of the technological advances that marked the development of electronics and the related semiconductor industry. The development of new semiconducting materials could be one solution to a problem plaguing the semiconductor industry today: that of rising heat dissipation in transistors in microchips, which led to computer speeds increasing at a much slower pace today than 10-15 years ago.
The so-called two-dimensional materials could be especially interesting in this context. They consist of single planes extracted from crystals of layered materials. Since the thickness of these planes is smaller than 1 nm and is usually on the scale of 1-3 atoms, two-dimensional materials represent the ultimate limit of miniaturization in the vertical dimension.
The first two-dimensional material under intense study was graphene, a single layer of graphite, made popular by a series of breakthroughs in 2004 and 2005. In spite of initial optimism, researchers are still looking for practical applications of this material, especially in the context of electronics where the lack of a band gap, a defining feature of semiconductors, made graphene much less interesting than initially thought. In 2010 my group made a breakthrough in this field by using a single layer of molybdenum disulphide (MoS2), a true 2D semiconductor, to realize the first transistor based on semiconducting single layers. This opened the way to exploring the science and application of a broad range of 2D semiconducting materials which were initially overlooked. Some of these materials and their uses in integrate circuits, memory elements, photodetectors and light emitting devices will be presented.
Program:
- Introduction by Prof. Demetri Psaltis, Dean of the Faculty of Engineering
- Inaugural lecture of Prof. Andras Kis, "Semiconductors from the Flatlands"
Please register here : http://go.epfl.ch/andraskis
Bio: Andras Kis received his master¹s degree in physics from the University of Zagreb in 1999. He joined the group of Prof. László Forró at EPFL where he earned his PhD in 2003 for which he was awarded the Latsis prize in 2004. Between 2004 and 2007, he was working as a postdoctoral researcher at the University of California, Berkeley, in the group of Prof. Alex Zettl. In 2008 he joined EPFL as an Assistant Professor of Electrical Engineering and was promoted to an associate Professor in 2015. He is a recipient of two ERC grants: a Starting grant in 2009 and a Consolidator grant in 2015. His group is interested in fundamental properties and practical applications of 2D materials.
Practical information
- General public
- Free
Organizer
- Sylvie Deschamps