Thursday, March 6, 2017
Speaker: Prof. Kostas Karatasos
Affiliation: University of Thessaloniki, Department of Chemical Engineering
Title: Graphene-based polymer nanohybrids from
a computational perspective
Location: Computer Science Department, room A115-A117(ground floor), Voutes
Time: 16:15 (sharp)
Language: English
For forthcoming colloquia, please visit:
http://www.materials.uoc.gr/en/colloquia
Time:
11:00 - 13:00
Location:
FORTH Main Auditorium “G. Lianis”
Description:
LECTURE ANNOUNCEMENT
Title : ‘ Medical Technology Transfer from the Academic Lab to the Real World’
Speaker: Prof. Nikolaos Stergiopulos, Professor and Director, Laboratory of Hemodynamics and Cardiovascular Technology,
Swiss Federal Institute of Technology (EPFL)
Date: 09 March 2017 Time: 11:00-13:00
Location: FORTH Main Auditorium “G. Lianis”
Host: Panos Tsakalides (ICS) and Spiros Anastasiadis (IESL)
SPEAKER: Dr. Efstratios Mylonas
Experienced scientist- Institute of Molecular Biology & Biotechnology- IMBB FORTH
TITLE: "Understanding function through structure: SAXS and 3D Modeling "
DATE: Friday 10th March 2017
TIME: 11:00
ROOM: Chemistry Seminar Room
Time:
09:30
Location:
Αμφιθέατρο «Γ. Λιάνης» του ΙΤΕ
Description:
Αγαπητοί συνάδελφοι,
Σας προσκαλούμε στην Ανοιχτή Ημερίδα που διοργανώνεται στο ΙΤΕ αυτήν την Πέμπτη 16/3, στο πλαίσιο του εορτασμού για τα 10 χρόνια από τη σύσταση του Ευρωπαϊκού Συμβουλίου Έρευνας, με επίσημο προσκεκλημένο τον Δρα Θεόδωρο Παπάζογλου (European Research Council Executive Agency). Η εκδήλωση θα πραγματοποιηθεί στο Αμφιθέατρο «Γ. Λιάνης» του ΙΤΕ, με ώρα έναρξης στις 9.30.
Η είσοδος στην εκδήλωση είναι ελεύθερη. Παρακαλούμε για την εγγραφή σας στη
διεύθυνση: http
://www.forth.gr/erc-event/registration.php
H εκδήλωση θα μεταδίδεται ζωντανά στη διεύθυνση: https
://diavlos.grnet.gr/event/e834
Time:
09:00
Location:
Chemistry Seminar Room
Description:
CHEMISTRY COLLOQUIUM
SPEAKER: Dr. Emmanouil Kyriakakis
Signal Transduction Laboratory, DBM, University Hospital, Basel, Switzerland
TITLE: "Molecular mechanisms of ageing and age-associated diseases at a glance: A journey between two worlds"
Monday, March 27, 2017
Speaker: Dr. Constantinos Stoumpos
Affiliation: Department of Chemistry, Northwestern University, US
Title: “Halide Perovskites: Exploring the Materials Chemistry of High Performance Semiconductors”
Location: Computer Science Department, room A115-A117 (ground floor), Voutes
Time: 16:15 (sharp)
Language: English
Abstract:
Halide perovskites is an emerging class of high performance semiconductors which operate in the visible and infrared energy range (1.1-3.0 eV). The materials have seen a resurgence in the last 5 years owing to the development of efficient photovoltaic devices, spearheaded by CH3NH3PbI3. Starting from the modest 3% in 2009, halide perovskites currently hold a record power-conversion-efficiency of PCE = 22.1%, thus representing the fastest developing solar cell technology known to date. The remarkable physical properties of the halide perovskites stem from their unique electronic structure, which lends the semiconductors high absorption coefficients and charge-carrier mobilities (comparable to III-V semiconductors).
In this talk I will outline the compositional space of the halide perovskites, AMX3, (A+ = Cs, CH3NH3, HC(NH2)2); (M2+ = Ge, Sn, Pb); (X- = Cl, Br, I) and explain the structural chemistry of the materials. I will discuss how small changes in the crystal structure can significantly alter the optical, electrical and electronic properties of the perovskites and I will elaborate on how these can be controlled by subtle modifications in their chemical synthesis. I will further describe how these materials can be applied in functional devices, tackling the problems of i) toxicity -by substituting the toxic Pb metal- and of ii) environmental stability -by employing the layered Ruddlesden-Popper perovskites.