LAM seminar series

Lecture title: Internal and External Control of Excitons in Colloidal Quantum Dots

Presented by: Dr. Jennifer A. Hollingsworth

Time and place: The lecture will take place on Friday, October 21st, 2024, at 10:00 am, in the large conference room of the Comenius University Science Park.

Abstract. Colloidal quantum dots (cQDs) synthesized in simple laboratory flasks are finding real-world applications in demanding technologies from displays and lighting to photovoltaics and photodetectors. In the future, cQDs may be the basis for single-photon devices in quantum networks. Beyond quantum-size control, we pursue an expanded “structural toolbox” to synthetically engineer new quantum emitters with targeted photophysical properties, including non-blinking behavior, biexciton enhancement, dual-color emission.  Taking advantage of their solution-phase processibility, we prepare cavity- or antenna-coupled cQD hybrid materials using, e.g., deterministic, direct-write nanointegration.  The former—precision synthesis—affords internal control over excitonic properties, while the latter—hybrid materials fabrication—affords external control via local environmental effects.

About the speaker. Dr. Jennifer A. Hollingsworth is a Laboratory Fellow at Los Alamos National Laboratory (LANL). She is a Fellow of the American Chemical Society (ACS), the American Physical Society (Materials Physics) and the American Association for the Advancement of Science (Chemistry), and serves as an elected Councilor for the ACS Division of Colloid & Surface Chemistry. She holds a BA in Chemistry from Grinnell College and a PhD degree in Inorganic Chemistry from Washington University in St. Louis. She joined LANL as a Director’s Postdoctoral Fellow in 1999, becoming a staff scientist in 2001. In 2013, she was awarded the LANL Fellows’ Prize for Research for her discovery of non-blinking “giant” quantum dots. She serves as Thrust Leader for Nanophotonics & Optical Nanomaterials in the Center for Integrated Nanotechnologies (CINT), a US-DOE Nanoscale Science Research Center and User Facility. Her research interests include discovery, rational design, and development of novel colloidal quantum emitters, unique synthesis and assembly techniques (e.g., automated synthesis, microfluidics-enabled nanowire growth, and scanning-probed-enabled direct write nanointegration), and nanomaterials applications, such as bioimaging, solid-state lighting and single-photon quantum light sources. In these areas, she has ~125 publications, >17,000 citations, and an h-index of 54.

You can find more in the invitation here:  [.pdf]

Lecture title: Fascinating insights into the Nobel Prizes: Origin, Laureates and Ceremonies

Presented by: Mgr. Martin Venhart, PhD., Institute of Physics SAS

Time and place: The lecture will take place on Friday, January 26th, 2024, at 10:00 am, in the large conference room of the Comenius University Science Park.

Abstract. The Nobel Prizes for Physics, Chemistry, Physiology and Medicine, Literature and Peace have been awarded since 1901. In 1969, the Swedish Reichsbank Prize for Economic Sciences in Memory of Alfred Nobel was added, which is often referred to as the Nobel Prize for Economics. As part of the lecture, we will look at how these awards actually came about, how the laureates are selected, we will present interesting cases of awardees and we will not avoid controversies either. Finally, we’ll talk about the ceremony itself, including some of Queen Silvia and Crown Princess Victoria’s evening gowns.

About the speaker. Martin Venhart is an experimental nuclear physicist. He earned his PhD. degree in 2008 at Comenius University. Then he went to Katholieke Universiteit in Leuven, Belgium, where he spent two years as post-doctoral researcher. Since 2010 he works at Institute of Physics, Slovak Academy of Sciences, where he led Department of Nuclear Physics. His experimental focus is on the nuclear structure of isotopes with odd mass number. He has been pursuing his experimental research program at CERN-ISOLDE facility, Cyclotron laboratory of the University of Jyväskylä, Finland and at iThemba Labs at Cape Town, South Africa. He is actively collaborating with University of Liverpool, University of Warsaw and Australian National University. He is the author or co-author of approximately 80 original articles in internationally refereed journals. He chairs a successful series of international conferences on nuclear structure ISTROS, held biannually in Slovakia. In 2021, Martin Venhart has been elected for position of the First Vice-president of Slovak Academy of Sciences. He is a member of several scientific councils, boards of supervisors and boards of trustees. He represented Slovak Republic in ISOLDE Collaboration Commitee at CERN and presently represents the Institute of Physics in NUPECC, Expert Committee of the European Science Foundation.

Lecture title: Nobel Prize in Physiology or Medicine 2023

Presented by: doc. MUDr. Ing. RNDr. Peter Celec, DrSc., MPH,

Institute of Molecular Biomedicine, Faculty of Medicine, Comenius University

Time and place: The lecture will take place on Friday, December 15, at 10:00 am, in the large conference room of the Comenius University Science Park.

You can find more in the invitation here:  [.pdf]   [.jpg]

Lecture title: Nobel Prize in Chemistry 2023

Presented by: RNDr. Milan Sýkora MBA., PhD.,

Laboratory for Advanced Materials, Faculty of Natural Sciences, Comenius University

Time and place: The lecture will take place on Friday, December 8, at 10:00 am, in the large conference room of the Comenius University Science Park.

The recording of the Nobel laureates’ lectures can be viewed here. Congratulations to the Nobel laureates!

You can find more in the invitation here:  [.pdf]   [.jpg]

Lecture title: Electrochemical sensors

Presented by: prof. RNDr. Renáta Oriňaková, DrSc.,

Department of Physical Chemistry, Institute of Chemistry, Faculty of Science Pavol Jozef Šafárik University in Košice, Košice, Slovakia

Time and place: The lecture will take place this Friday, 21 April at 10:00 in the Presentation Center AMOS at FNS CU, (room B1-313).

You can find an abstract and a short biography of the lecturer in the invitation here [.pdf]

Lecture title: Photocatalysis and photocatalytic reactions

Presented by: Prof. Ing. Kamila Kočí, PhD. Laboratory of heterogeneous photocatalysis, Institute of Environmental Technology, CEET, VŠB-Technical University of Ostrava, Czech Republic

Time and place: Friday, 27 August at 11:00 in the large lecture room of the Comenius University Science Park (room 187).

You can find an abstract and a short biography of the lecturer in the attached invitation [.pdf]