IESL-FORTH

HALIDE PEROVSKITE AND PEROVSKITE-RELATED NANOCRYSTALS: SYNTHESIS, OPTICAL PROPERTIES, HETEROSTRUCTURES

Event Dates

From: 10/11/2022 12:00
To: 10/11/2022 14:00

External Speaker

Prof. Liberato Manna (Department of Nanochemistry, Istituto Italiano di Tecnologia, Italy)

Place

FORTH Seminar Room 1

Abstract/Description

Halide perovskite semiconductors can merge the highly efficient operational principles of conventional inorganic semiconductors with the low‑temperature solution processability of emerging organic and hybrid materials, offering a promising route towards cheaply generating electricity as well as light. Following a surge of interest in this class of materials, research on halide perovskite nanocrystals (NCs) has gathered momentum in the last years. While most of the emphasis has been put on CsPbX₃ perovskite NCs, more recently the so-called double perovskite NCs, having chemical formula A⁺₂B⁺B³⁺X₆, have been identified as possible alternative materials, together with various other metal halides structures and compositions, often doped with different elements. This talk will also discuss the research efforts of our group on these materials. I will highlight how for example halide double perovskite NCs are less surface tolerant than the corresponding Pb-based perovskites. Other topics that will be covered are the role of surface ligands on stabilizing the NCs (including those with alloy compositions), doping, and our ongoing research on various other metal halides (for example the Mn-based ones). I will also show our recent results on the synthesis and advanced characterization of heterostructured nanocrystals in which one domain is a lead chalcohalide and the other domain is a cesium lead halide perovskite.

HIDDEN IN BREATH: EXHALED BIOMARKERS OF HEALTH AND DISEASE

Event Dates

From: 09/11/2022 12:00
To: 09/11/2022 14:00

External Speaker

Prof. Jonathan Beauchamp (Department of Sensory Analytics and Technologies, Fraunhofer Institute for Process Engineering and Packaging IVV, Germany)

Place

KEEK Building (old ENISA) Room 119

Abstract/Description

Every few seconds, each of us exhales a rich cocktail of gaseous chemicals into our immediate surroundings. This mixture is quantitatively dominated by nitrogen (74.5 %), oxygen (13.7 %), carbon dioxide (5.3 %) and water vapour (~6 %), but it is the remaining 1 % fraction that earns increasing scientific and medical interest. At these trace levels, exhaled breath is a complex mixture of volatile compounds that derive from internal biochemical processes and can provide potential indications of physiological status, environmental burden, and disease. This lecture will introduce the concept of non-invasive breath analysis as a means for exploring physiological state. After a brief historical overview of detection of disease ‘on the breath’, the talk will introduce state-of-the-art sampling methodologies and analytical technologies, from lab-scale instrumentation to sensor-based devices, and review established breath tests for biomarker detection. The lecture will conclude with a look at current challenges and a prospective outlook of this innovative application in health and disease diagnostics.

QCAT - ΜΙΑ (1) ΘΕΣΗ ΥΠΟΨΗΦΙΟΥ ΔΙΔΑΚΤΟΡΑ

The deadline to apply for this position has expired.

Publication Date

04/10/2022

Application Deadline

18/10/2022

Position Category

Reference Number

2022_90171

Salary

Location

Herakleion, Crete, Greece

Contact Person

Start Date

15/11/2022

Position Description

Μη καταστροφικός χαρακτηρισμός του αριθμού ατόμων υπέρψυχρου νέφους με ακρίβεια στο επίπεδο του θορύβου βολής.

Θα αναπτυχθεί μια διάταξη για τη μέτρηση του αριθμού ατόμων σε ένα υπέρψυχρο ατομικό νέφος χωρίς αύξηση της θερμοκρασίας του. Η μέτρηση βασίζεται στο φαινόμενο Faraday, όπου το φως υπόκειται σε οπτική περιστροφή καθώς διαδίδεται μέσα από ένα σύνολο ατόμων. Θα πραγματοποιηθούν τροποποιήσεις σε μια υπάρχουσα διάταξη που θα μας επιτρέψουν να χαρακτηρίσουμε τον αριθμό ατόμων με ακρίβεια καλύτερη από το επίπεδο θορύβου-βολής. Αυτές περιλαμβάνουν: στροβοσκοπική διαμόρφωση της οπτικής δέσμης που χρησιμοποιείται στην ανίχνευση, και την εισαγωγή μιας οπτικής κοιλότητας για την αύξηση της αλληλεπίδρασης ατόμου-φωτός. Επιπλέον, θα επιδιωχθούν βελτιώσεις στη διαδικασία παραγωγής του υπέρψυχρου νέφους, προκειμένου να επιτευχθεί πιο γρήγορη και αξιόπιστη παραγωγή ατομικών νεφών με μεγαλύτερο αριθμό ατόμων σε σχέση με αυτά που μπορούν να παραχθούν αυτή τη στιγμή στο εργαστήριό μας

Για το πλήρες κείμενο της πρόσκλησης ακολουθήστε τον σύνδεσμο 'Related Documents'

Related Project

QCAT -

Required Qualifications

Μεταπτυχιακό Φυσικής
Ερευνητική εμπειρία στο αντικείμενο του έργου

Desirable Qualifications

Πειραματική ερευνητική εμπειρία σε ατομική φυσική

Application Procedure

Στο φάκελο υποβολής της πρότασης θα πρέπει να εμπεριέχονται τα ακόλουθα:

Αίτηση (Form Greek στην αριστερή στήλη) με αναφορά στον κωδικό της θέσης και στο όνομα του προγράμματος
Αναλυτικό Βιογραφικό Σημείωμα
Ευκρινή φωτοαντίγραφα τίτλων σπουδών
Πρόσφατη βεβαίωση σπουδών υποψήφιου διδάκτορα

ΥΠΟΒΟΛΗ ΠΡΟΤΑΣΕΩΝ

Οι ενδιαφερόμενοι καλούνται να υποβάλουν τις αιτήσεις τους και όλα τα απαραίτητα δικαιολογητικά, ηλεκτρονικά στη διεύθυνση hr@iesl.forth.gr με κοινοποίηση (cc): στον Δρ Γ. Βασιλάκη (gvasilak@iesl.forth.gr). Οι αιτήσεις θα πρέπει να αποσταλούν με την ένδειξη: «Αίτηση στο πλαίσιο του προγράμματος QCAT, της πρόσκλησης εκδήλωσης ενδιαφέροντος με Α.Π. … και κωδικό θέσης … » (όπως αυτός αναφέρεται στον Πίνακα του Παραρτήματος).

Appointment Duration

16 μήνες

Funding

Researcher ID

Scholar ID

Office Phone: (+30) 2811 39 2943

Lab Phone: (+30) 2810 39 1888

Fax: STEPC B199

Email: iparad@iesl.forth.gr

Full CV: Download

Ioannis Paradeisanos obtained his B.Sc. in 2012 from the University of 
Crete in Greece. In September 2014, he completed his Masters’ studies in 
micro-optoelectronics at the Physics department of the University of 
Crete and in March 2018 he obtained his Ph.D. degree from the same 
department. During his Ph.D. dissertation he studied the physics of 
different excitonic species in atomically thin semiconductors. After 
that, he moved as a postdoctoral research associate to the University of 
Cambridge, where he worked on the optical and vibrational properties of 
layered materials. From October 2019 to September 2022 he was a member 
of the Quantum Optoelectronics group in Toulouse to study the optical 
properties of transition metal dichalcogenide monolayers and their 
heterostructures. In October 2022 he moved to Crete and IESL/FORTH with 
a financial support by the Hellenic Foundation for Research and 
Innovation (H.F.R.I.) under the “3rd Call for H.F.R.I. Research Projects 
to support Post-Doctoral Researchers.

Education

2018, Ph. D. in Exciton Physics, Physics Department, University of Crete, Greece.
2014, M. Sc in Micro-Optoelectronics, Physics Department, University of Crete, Greece.
2012, B. Sc, Department of Materials Science & Technology, University of Crete, Greece.

Career

10/2022 - Today, H.F.R.I. Research Fellow, FORTH-IESL, Greece
10/2019 - 09/2022, Senior Research Associate, Quantum Optoelectronics Group, INSA/CNRS, Toulouse, France
04/2018 - 09/2019, Research Associate, University of Cambridge, UK

Interests

Light-matter interactions in 2D semiconductors
Exciton formation and relaxation
Spin-valley polarization phenomena
Exciton-exciton, exciton-phonon, exciton-carrier interactions
Stark and Zeeman effects
Interlayer coupling in 2D heterostructures
Lattice vibrations and phonons
Near-field interactions

Excitons dance as light conducts

I. Paradisanos and B. Urbaszek

Nature Physics, Volume:19, Page:149-150, Year:2023, DOI:https://doi.org/10.1038/s41567-022-01880-w

Interlayer exciton mediated second harmonic generation in bilayer MoS2

S. Shree, D. Lagarde, L. Lombez, C. Robert, A. Balocchi K. Watanabe, T. Taniguchi, X. Marie, I. C. Gerber, M.M. Glazov, L. E. Golub, B. Urbaszek and I. Paradisanos

Nature Communications, Volume:12, Page:6894, Year:2021, DOI:https://doi.org/10.1038/s41467-021-27213-8

Second harmonic generation control in twisted bilayers of transition metal dichalcogenides

I. Paradisanos, A. M. Saiz Raven, T. Amand, C. Robert, P. Renucci, K. Watanabe, T. Taniguchi, I. C. Gerber, X. Marie and B. Urbaszek

Phys. Rev., Volume:105, Page:115420, Year:2022, DOI:https://doi.org/10.1103/PhysRevB.105.115420

Efficient phonon cascades in WSe2 monolayers

I. Paradisanos, G. Wang, E. M. Alexeev, A. R. Cadore, X. Marie, A. C. Ferrari, M. M. Glazov and Bernhard Urbaszek

Communications, Volume:12, Page:538, Year:2021, DOI:https://doi.org/10.1038/s41467-020-20244-7

Low-loss integrated nanophotonic circuits with layered semiconductor materials

T. Liu, I. Paradisanos, J. He, A. R. Cadore, J. Liu, M. Churaev, R. N. Wang, A. S. Raja, C. Javerzac-Galy, P. Rölli, D. De Fazio, B. L. T. Rosa, S. Tongay, G. Soavi, A. C. Ferrari and T. J. Kippenberg

Nano Letters, Volume:21, Issue:7, Page:2709, Year:2021, DOI:https://doi.org/10.1021/acs.nanolett.0c04149

Giant Stark splitting of an exciton in bilayer MoS2

N. Leisgang, S. Shree, I. Paradisanos, L. Sponfelder, C. Robert, D. Lagarde, A. Balocchi, K. Watanabe, T. Taniguchi, X. Marie, R. J. Warburton, I. C. Gerber and Bernhard Urbaszek

Nature Nanotechnology, Volume:15, Page:901, Year:2020, DOI:https://doi.org/10.1038/s41565-020-0750-1

Controlling interlayer excitons in MoS2 layers grown by chemical vapor deposition

I. Paradisanos, S. Shree, A. George, N. Leisgang, C. Robert, K. Watanabe, T. Taniguchi, R. J. Warburton, A. Turchanin, X. Marie, I. C. Gerber and B. Urbaszek

Nature Communications, Volume:11, Page:2391, Year:2020, DOI:https://doi.org/10.1038/s41467-020-16023-z

Guide to optical spectroscopy of layered semiconductors

S. Shree, I. Paradisanos, C. Robert, X. Marie and Bernhard Urbaszek

Nature Reviews Physics, Volume:3, Page:39, Year:2020, DOI:https://doi.org/10.1038/s42254-020-00259-1

Prominent room temperature valley polarization in WS2/graphene heterostructures grown by chemical vapor deposition

I. Paradisanos, K. M. McCreary, D. Adinehloo, L. Mouchliadis, J. T. Robinson, H.-J. Chuang, A. T. Hanbicki, V. Perebeinos, B. T. Jonker, E. Stratakis and G. Kioseoglou

Appl. Phys. Lett., Volume:116, Page:203102, Year:2020, DOI:https://doi.org/10.1063/5.0002396

Room temperature observation of biexcitons in exfoliated WS2 monolayers

I. Paradisanos, S. Germanis, N. T. Pelekanos, C. Fotakis, E. Kymakis, G. Kioseoglou and E. Stratakis

Appl. Phys. Lett., Volume:110, Page:193102, Year:2017, DOI:https://doi.org/10.1063/1.4983285

Start Date: 01/07/2022, End Date: 30/06/2026

The MOCA collaborative project gathers five research groups in Europe (Germany, France, Italy, Hungary, Greece) funded by their own respective national agencies but selected at the European level in the framework of the QUANTERA program.

The goal of this project is to pave the way for long-distance quantum communications between superconducting quantum (sub)processors with optical photons. We shall develop integrated chips for the conversion between microwave and optical photons using ultracold atomic ensembles. The hybrid chip developed in this project, with atoms simultaneously interacting with microwave and optical cavity fields, could be connected to superconducting quantum processors and fiber optical communication networks for realizing coherent links between distant computational nodes. Our project will demonstrate experimental techniques for microwave to optical conversion that are integrable on chips. The final goal of the project is to evaluate the operation and optimal design of a superconducting atom chip with integrated microwave and optical cavities for the coherent transduction of photons.

Principal Investigator

Dr. Petrosyan David

Research Director

Funding

ERANETS

Start Date: 01/10/2022, End Date: 30/09/2025

Project Website

Ultracold trapped atoms have recently emerged as one of the most promising physical platforms for digital quantum computing, having already demonstrated systems with more than 200 qubits (the computational unit of a quantum computer) with strong interactions mediated by their highly excited Rydberg states and a clear path to further scalability to thousands of qubits. To develop the next generation of fully programmable and scalable quantum computing systems based on ultracold Rydberg atoms, EuRyQa will bring together four complementary European Rydberg platforms. In this way, the consortium aims to provide a unique European solution for Rydberg-based quantum computing, together with the first pan-European benchmarking and standardisation of the technology.

To achieve the project’s aims, EuRyQa unites partners from academia at the forefront of ultracold-atom-based quantum technology with industrial partners providing complementary expertise on quantum hardware, classical electronics, firmware, and software. EuRyQa is coordinated by the University of Strasbourg (France) and other partners include the SMEs PASQAL (France) and Quantum Machines Technologies (Israel), the University of Stuttgart, the spin-off Qruise GmbH from the Research Centre Jülich, and the consultancy EURICE GmbH (Germany), the University of Amsterdam and the Technical University of Eindhoven (the Netherlands), the research center FORTH (Greece), Associacao Portuguese Quantum Institute (Portugal), and Università degli Studi di Padova (Italy).

EuRyQa project is aimed at establishing Rydberg quantum processors as a leading platform for scalable quantum computing in Europe.

"We will provide a common quantum computing stack for Rydberg atoms, a federated cloud service, solutions to concrete computational problems, and key technology for fault-tolerant quantum computing with Rydberg qubits,” says Prof. Guido Pupillo from the University of Strasbourg, who coordinates EuRyQa. "The success of EuRyQa will be a game changer for Europe in a global competition for quantum computing."

Principal Investigator

Dr. Petrosyan David

Research Director

Funding

European Horizon 2020 framework

ΦΑΕΘΩΝ - ΜΙΑ (1) ΘΕΣΗ ΤΕΧΝΙΚΟΥ

The deadline to apply for this position has expired.

Publication Date

26/09/2022

Application Deadline

06/10/2022

Position Category

Reference Number

2022_89568

Salary

Location

Herakleion, Crete, Greece

Contact Person

Start Date

01/11/2022