Graphene - Quantum Dot Photodetectors
Combining high mobility graphene transistors with efficient light absorbing colloidal quantum dots may pave a way for cheap, high resolving infrared photodetectors. Light is absorbed in the Quantum Dot layer, creating excitons. One charge carrier type is transferred faster to the biased graphene transistor, leading to an additional electric field. This is measured by a current change in the graphene transistor. We are investigating the detailed mechanism of these graphene-QDs photodetectors, expanding the range of spectral photoresponse, increasing the detectivity, and scalling down to the device size below the light wavelength.
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Position: Master Thesis Student in Time Resolved Photoluminescence Spectroscopy and Simulations
Are you passionate about unraveling the mysteries of emerging optoelectronic materials? We are looking for a motivated Master Thesis student to join the Nanomaterials Spectroscopy and Imaging Group at Empa, located in the vibrant city of Zurich, Switzerland.
Responsibilities:
Investigate carrier dynamics of cutting-edge optoelectronic materials, including thin films and 2D materials.
Simulate Time Resolved Photoluminescence (TRPL) response. Fit experimental results and extract crucial optoelectronic parameters like diffusion coefficient, carrier concentration, and carrier lifetime.
Requirements:
- Proficiency in programming languages such as Python or Matlab.
- Strong analytical skills.
- Ability to work independently and collaboratively.
- Experimental skills are a plus.
Gain hands-on experience in a dynamic research environment. Collaborate with leading experts in the field and work on cutting-edge projects with real-world applications.
This position is open to EU and Swiss permit holders.
To apply, contact Dr. Mirjana Dimitrievska
Dr. Mirjana Dimitrievska
Group leader of the Nanomaterials Spectroscopy and Imaging Group
Master projects
Our lab offers a variety of Master projects for students.
For more details do not hesitate to contact responsible persons.
Title | Contact person(-s) |
---|---|
Time Resolved Photoluminescence Spectroscopy and Simulations | Mirjana Dimitrievska |
Charge and heat transport through graphene nanoribbon based devices | Mickael Perrin |
Decoding Alzheimer’s Protein Aggregation in Body Fluids | Peter Nirmalraj |
Electron hydrodynamics in graphene heterostructures | Tathagata Paul |
Gate-defined quantum confinement in graphene superlattice | Jian Zhang |
Machine Learning Augmented Red Blood Cell Imaging and Analytics | Peter Nirmalraj |
Fabrication and characterization of THz metasurfaces | Elena Mavrona |
Stress and thermal characterization of bent graphene using THz na-noscopy | Elena Mavrona |
Flexible graphene-based THz detectors | Elena Mavrona |
Former Members
Former Team-Members
Name | Period of stay | Left for | PhD topic |
---|---|---|---|
Dr. Gökhan Kara | 2019 - 2024 | Hybrid Phototransistors: Understanding the IR Photoactive Interface | |
Dr. Talia Bergaglio | 2019 - 2023 | Chemical effects on blood studied using label-free nanoscale analytics | |
Dr. Jacopo Oswald | 2019 - 2023 | Graphene-Organic Interfaces for Vertical Electronic Devices | |
Sebastian Kretschmer | 2018 - 2023 | ||
Dr. Jordan Bouaziz | 2021 - 2023 | Institut des Nanotechnologies de Lyon | |
Dr. Davide Beretta | 2019 - 2023 | ||
Dr. Lars Lüder | 2018 - 2022 | KI-Makerspace, Tübingen DE | Biochemical sensing based on metal-organic architectures |
Christian Spörl | 2022 - 2022 | idonus, Neuchâtel | |
Michael Stiefel | 2003 - 2022 | BRNC, Zurich | |
Dr. Yves Mermoud | 2016 - 2022 | FH OST, Buchs | Towards solid-state biosensors for evidence-based management of febrile illness |
Dr. Mikhail Ryazanskiy | 2020 - 2022 | ||
Oliver Schmuck | 2019 - 2022 | ||
Nadia Jimenez | 2019 - 2021 | D-ITET, ETH Zürich | |
Dr. Olena Synhaivska | 2016 - 2021 | Spiden, Pfäffikon SZ | Sensing metal ions-peptide and protein interfacial interactions |
Dr. Miklos Csontos | 2017 - 2021 | D-ITET, ETH Zürich | |
Jürg Spörri | 2021 | ||
Dr. Oliver Braun | 2016 - 2021 | Kistler Instrumente, Winterthur | Thermoelectric Effects in Nanoscale Devices |
Pablo Habegger | 2021 | ||
Daniel Sacre | 2020 - 2021 | ||
Dr. Matthias Grotevent | 2016 - 2021 | Massachusetts Institute of Technology | Nanoprinted Quantum DOT/Graphene Infrared Photodetectors, and their Temperature-Dependent Mechanism of Charge Carrier Transfer |
Dr. Jan Overbeck | 2016 - 2020 | Nanojunctions from molecules to graphene nanoribbons : optical characterization and transport properties | |
Omar Vögele | 2019 - 2020 | studies at ETH | |
Dr. Arno Römmeler | 2020 | ||
Dr. Sofiya Matviykiv | 2019 - 2020 | Novartis, Basel | |
Jason Suter | 2019 - 2020 | ||
Dr. Tornik Gagnidze | 2016 - 2020 | Investigation of electronic structure at the SrTiO3/YBa2Cu3O7-δ interface | |
Dr. Agnes Gubicza | 2017 - 2019 | advanced studies at ETH | |
Dr. Arno Römmeler | 2015 - 2019 | Air coupled ultrasonic defect detection in thin walled polymer specimens with Lamb waves | |
Jingming Cao | 2018 - 2019 | ,China | |
Chiara Cignarella | 2019 | ||
Dr. Lorenzo Valzania | 2015 - 2019 | LKB, Paris FR | Coherent lensless imaging techniques using terahertz radiation |
Dr, Huan Ma | 2017-2019 | Bruker, China | |
Valentin Matton | 2018 | ||
Dr. Maria el Abbassi | 2017 - 2018 | Tu Delft, NL | Graphene molecular junctions |
Dr. Sahana Sarkar | 2017 - 2018 | ASML, Veldhoven NL | |
Dr. Masoud Baghernejad | 2016 - 2018 | Max Planck, Mainz DE | |
Dr. Kishan Thodkar | 2017 - 2018 | BioMed X Innovation Center, Heidelberg DE | Chemical vapor deposited graphene for quantum Hall resistance standards |
Dr. Christina Pecnik | 2015 - 2018 | IMT, Greifensee | |
Dr. Anton Vladyka | 2016 - 2017 | University of Birmingham | Detailed analysis of single molecular junctions for novel computing architectures |
Dr. Yu Liu | 2013 - 2017 | ETH, Zürich | Improve industrial cone-beam computed tomography by integrating prior information |
Dr. Carina Stritt | 2013 - 2017 | Siemens Schweiz, Wallisellen | Assessment and correction of image degradation in MeV Cone Beam Computed Tomography |
Dr. Pascal Butti | 2012 - 2017 | Mettler-Toledo, Nänikon | Graphene three-terminal nanojunction rectifiers |
Dr. Evelyn Stilp | 2015 - 2016 | Empa, Lab 501, Dübendorf | |
Francesco Pagani | 2015 - 2016 | Empa, Lab 501, Dübendorf | |
Dr. Eduardo Cuervo Reyes | 2014 - 2016 | Empa, Lab 501, Dübendorf | |
Dr. Donat Adams | 2012 - 2016 | University of Bern | |
Dr. Christian Scheller | 2014 - 2015 | University of Basel | |
Samuel Gloor | 2010 - 2015 | Technologielabor EAO, Olten | |
Dr. Ivan Jerjen | 2008 - 2015 | ETHZ/PSI, Villigen | |
Dr. Caroline Andersson | 2011 - 2014 | ABB, Baden-Dättwil | |
Dr. Philipp Schütz | 2010 - 2014 | Hochschule, Luzern | |
Dr. Eugen Zgraggen | 2010 - 2014 | McKinsey & Company, Zürich | Fabrication and system integration of single-mode polymer optical waveguides |
Dr. Olivier Scholder | 2009 - 2014 | Lund University, Sweden | Fabrication, Simulation and Characterization of Tunable Plasmonic Nano Antennas. |
Dr. Thomas Lüthi | 200x - 2014 | Empa, Lab 499, Dübendorf | |
Alex Flisch | 200x - 2014 | Empa, Lab 499, Dübendorf | |
Jürgen Hofmann | 200x - 2014 | Empa, Lab 499, Dübendorf | |
Dr. Mathieu Plamondon | 2013 - 2014 | Empa, Lab 499, Dübendorf | |
Marco Graf | 2010 - 2013 | -- | |
Dr. Konstantins Jefimovs | 2007 - 2013 | PSI, Villigen | |
Dr. Valeria Lotito | 2008 - 2012 | CVL, ETH, Zürich | Novel probes for scanning near-field optical microscopy |
Dr. Sergio Sanabria | 2008 - 2012 | LBB, ETH, Zürich | Air-coupled ultrasound propagation and novel non-destructive bonding quality assessment of timber composites |
Dr. Mara Feligiotti | 2008 - 2012 | -- | |
Dr. Veronica Berdinas | 2007 - 2012 | ABB, Zürich | |
Dr. Daniel Iwaniuk | 2007 - 2011 | Swissoptic, Heerbrugg | Application of adaptive optics to focusing and imaging |
Dr. René Moser | 2006 - 2010 | swissQuant, Zürich | Motion estimation from tomographic projections |
Dr. Felix Gattiker | 2005 - 2009 | Proceq SA, Schwerzenbach | Novel ultrasound read-out for a wireless implantable passive strain sensor |
Dr. Victor Callegari | 2005 - 2009 | AWK, Zürich | Fabrication of photonic elements by focused ion beam (FIB) |
Retired Team-Members
Name | Retired |
---|---|
Nicoletti Giovanni | 2021 |
Peter Jacob | 2021 |
Silvia Eppenberger | 2021 |
Günter Grossmann | 2021 |
Enzo Cattarin | 2020 |
Albert Kunz | 2019 |
Willy Knecht | 2019 |
Beatrice Spörri | 2019 |
Dr. Jürg Neuenschwander | 2018 |
Dr. Urs Sennhauser | 2016 |
Peter Anderegg | 2016 |
Dr. Peter Wyss | 2010 |
Stephan Meier | 2009 |
Apprentices
Name | Period of stay |
---|---|
Sofie Gnannt | 2019 - 2023 |
Nick Luis Caceres | 2019 - 2023 |
Claudio Sommer | 2018 - 2022 |
Alff Andreas | 2017 - 2021 |
Zwyssig Dominic | 2017 - 2021 |
Jil Graf | 2016 - 2020 |
Dylan Vogt | 2016 - 2020 |
Janic Widmann | 2016 - 2020 |
Omar Vögele | 2015 - 2019 |
Robin Bucher | 2015 - 2019 |
Mika Pfister | 2014 - 2018 |
Simon Nocco | 2013 - 2017 |
David Sommer | 2013 - 2017 |
Aurelian Emmenegger | 2012 - 2016 |
Manuel Roth | 2012 - 2016 |
Andreas Freese | 2011 - 2015 |
Simon Holdener | 2011 - 2015 |
Nadja Rutz | 2010 - 2014 |
Adrian Keller | 2010 - 2014 |
Tino Loop | 2009 - 2013 |
Carmen Schneider | 2009 - 2013 |
Jonas Vergest | 2008 - 2012 |
Pascal Keller | 2008 - 2012 |
Academic guests, Master/IAEST-Students
Name | Year |
---|---|
Sophie Hardmeier | 2023 |
Alex Weitnauer | 2023 |
David Gryc | 2023 |
Angel Victor Labordet Alvarez | 2023 |
Dr. Vicente Genoves | 2022 - 2023 |
Michiel De Maeyer | 2022 |
Alessia Romio | 2021 - 2022 |
Samuel Singh | 2021 - 2022 |
Krispin Dettlaff | 2021 |
Ho-Yun Lee | 2021 |
Martina Grether | 2020 - 2021 |
Elena Quiriconi | 2020 - 2021 |
Alexandra Walser | 2020 |
Thomas Wagner | 2020 |
Alexander Flasby | 2019 & 2020 |
Anna Nyáry | 2019 |
Prof. J. Liao | 2018 |
Prof. A. Shengelaya | 2018 |
Silvan Käser | 2018 |
Mathias Grotevent | 2015 |
Gokul Nayar | 2014 |
Emmanuel Garuz Leon | 2012 - 2013 |
Annick Sipp Etter | 2013 |
Jan Ernest | 2013 |