Nanoscale (Opto-) Electronics

@ Vienna University of Technology

Research

The Nanoscale Electronics & Optoelectronics Group at Vienna University of Technology (TU Wien; PrincipaI Investigator: Thomas Mueller) explores 2D materials, such as graphene and layered transition metal dichalcogenides, for applications in electronics, optoelectronics and photonics. These materials are crystalline and thus of high quality, yet they can be produced at low cost and with large-area dimensions, making them attractive for a wide variety of applications. The aim of our research is to advance state-of-the-art of nanoscale device technology and provide physical insights in carrier dynamics, optical response and many body effects in these materials.

AFM image of a continuous MoS2 monolayer film grown by CVD

Our work covers a wide range of activites in 2D material science & technology, from fundamental studies to devices and systems:

Fundamental studies

exciton physics, quantum light emission, non-linear optics

Optoelectronic devices

for photovoltaic energy conversion and light emission

Electronic integrated circuits

for embedding intelligence into everyday objects

Photonic integrated circuits

for high-speed intra- and inter-chip optical interconnects

Publications

2D Materials: Properties and Devices

Cambridge University Press

Chapters: "Graphene optoelectronic devices" & "TMDs: optoelectronic devices"

2D Materials for Nanoelectronics

CRC Press

Chapter: "TMD-based photodetectors, light emitters and photovoltaics"

Selected Publications

Sparse pixel image sensor Preprint (2021)
High-responsivity graphene photodetectors integrated on silicon microring resonators Nature Communications 12, 3733 (2021)
The performance limits of hexagonal boron nitride as an insulator for scaled CMOS devices based on 2D materials Nature Electronics 4, 98 (2021)
Analogue two-dimensional semiconductor electronics Nature Electronics 3, 486 (2020)
Insulators for 2D nanoelectronics: the gap to bridge Nature Communications 11, 3385 (2020)
Ultrafast machine vision with 2D material neural network image sensors Nature 579, 62 (2020)
Low-voltage 2D materials-based printed field-effect transistors for integrated digital and analog electronics on paper Nature Communications 11, 3566 (2020)
Band nesting in two-dimensional crystals: An exceptionally sensitive probe of strain Nano Letters 20, 4242 (2020)
Ultrathin calcium fluoride insulators for two-dimensional field-effect transistors Nature Electronics 2, 230 (2019)
Electroluminescence from multi-particle exciton complexes in transition metal dichalcogenide semiconductors Nature Communications 10, 1709 (2019)
Localized intervalley defect excitons as single-photon emitters in WSe2 Physical Review Letters 123, 146401 (2019)
Optical imaging of strain in two-dimensional crystals Nature Communications 9, 516 (2018)
Exciton physics and device application of two-dimensional transition metal dichalcogenide semiconductors npj 2D Materials and Applications 2, 29 (2018)
Device physics of van der Waals heterojunction solar cells npj 2D Materials and Applications 2, 3 (2018)
A microprocessor based on a two-dimensional semiconductor Nature Communications 8, 14948 (2017)
Black phosphorus mid-infrared photodetectors with high gain Nano Letters 16, 4648 (2016)
Controlled generation of a p-n junction in a waveguide integrated graphene photodetector Nano Letters 16, 7107 (2016)
Solar-energy conversion and light emission in an atomic monolayer p-n diode Nature Nanotechnology 9, 257 (2014)
Photodetectors based on graphene, related two-dimensional crystals, and hybrid systems Nature Nanotechnology 9, 780 (2014)
Photovoltaic effect in an electrically tunable van der Waals heterojunction Nano Letters 14, 4785 (2014)
Mechanisms of photoconductivity in atomically thin MoS2 Nano Letters 14, 6165 (2014)
CMOS-compatible graphene photodetector covering all optical communication bands Nature Photonics 7, 892 (2013)
Microcavity-integrated graphene photodetector Nano Letters 12, 2773 (2012)
Intrinsic response time of graphene photodetectors Nano Letters 11, 2804 (2011)
Graphene photodetectors for high-speed optical communications Nature Photonics 4, 297 (2010)
Efficient narrow-band light emission from a single carbon nanotube p-n diode Nature Nanotechnology 5, 27 (2010)
Ultrafast graphene photodetector Nature Nanotechnology 4, 839 (2009)
Photocurrent imaging and efficient photon detection in a graphene transistor Nano Letters 9, 1039 (2009)

A complete list of our publications is available on Google Scholar:

VISIT Google Scholar Profile

People

Photo & short-bio

Assoc. Prof. Thomas Mueller

Email: thomas.mueller (at) tuwien.ac.at

Phone: +43-1-58801-38739

Room: CCEG13

Dr. Dmitry K. Polyushkin

Email: dmitry.polyushkin (at) tuwien.ac.at

Phone: +43-1-58801-38786

Dr. Aday Molina-Mendoza

Email: aday.molina-mendoza (at) tuwien.ac.at

Phone: +43-1-58801-38725

Dr. Do-Hyun Kwak

Email: dohyun.kwak (at) tuwien.ac.at

Phone: +43-1-58801-38785

Dr. Lukas Mennel

Email: lukas.mennel (at) tuwien.ac.at

Phone: +43-1-58801-38785

Thomas Pucher

Email: thomas.pucher (at) tuwien.ac.at

Phone: +43-1-58801-38723

Alumni

Matthias Paur
Stefan Wachter
Joanna Symonowicz
Simone Schuler
Marco M. Furchi
Andreas Pospischil
Alexander Urich

Simon Haberfellner
Florian Höller
Nikolaus Lehner
Armin Zechmeister
Stephan Preisinger
Alexander Unterkreuter

"Hannspeter Winter Preis", Simone Schuler, 2019
"Christiana Hörbiger Prize", Simone Schuler, 2019
"Verbund Women’s Fellowship", Simone Schuler, 2018
"Best PhD Student Poster contribution" @ Graphene, Lukas Mennel, 2018
"Nano-Prize of the Erwin Schrödinger Society for Nanosciences", Simone Schuler, 2018
"Best Student Talk Award" @ Graphene Week, Simone Schuler, 2018
"Ernst Blickle Prize", Florian Höller, 2017
"Marie Curie Fellowship", Aday Molina-Mendoza, 2017
"Poster Award" @ Graphene Study, Stefan Wachter, 2017
"Best PhD Student Oral Contribution" @ Graphene 2017, Stefan Wachter, 2017
"Science Award of the State Government of Vorarlberg", Marco Furchi, 2017
"Lise Meitner Fellowship", Aday Molina-Mendoza, 2017
"Anton Paar Prize in Physics", Andreas Pospischil, 2016
"Best Poster Award" @ Winterschool on Solid State Physics, Simone Schuler, 2016
"Lions Prize", Marco Furchi, 2015
"Marshall Plan Scholarship Award", Marco Furchi, 2015
"Best Poster Award" @ Joint Annual Meeting of the ÖPG & SPG, Simone Schuler, 2015
"Marshall Plan Scholarship Award", Andreas Pospischil, 2015
"Nano-Prize of the Erwin Schrödinger Society for Nanosciences", Marco Furchi, 2014
"Student Award of the Austrian Physical Society", Andreas Pospischil, 2012
"START Prize", Austrian Science Fund, Thomas Mueller, 2011
"Recognition Award for Science", Lower Austrian State Government, Thomas Mueller, 2011
"Fritz-Kohlrausch Prize", Austrian Physical Society, Thomas Mueller, 2010
"Young Scientist Award", ASciNA, Thomas Mueller, 2010
"Erwin-Schrödinger Fellowship", Austrian Science Fund, Thomas Mueller, 2007