Colloidal quantum dots (QDs) have become essential building blocks of many different optoelectronic devices, e.g. efficient photodetectors and vivid color screen displays, and are playing a pivotal role for the development of future quantum technologies, photocatalysis and bio-applications. This symposium aims at bringing together experimentalists and theoreticians who are investigating various fundamental processes in nanomaterials, from the synthesis, surface chemistry and optical characterization to theoretical modelling and device applications. It provides a forum for discussing the latest scientific discoveries in these exciting new research areas bridging material science with optoelectronics and quantum technologies.
- Chemistry: new synthesis methods, novel surface chemistry, self-assembly, new compositions
- Optical spectroscopy: carrier dynamics at ensemble and single dot or 2D-layer level, stimulated emission, photon statistics
- Theory: band structure calculations, exciton-phonon coupling, fine-structure splitting
- Optoelectronics: LEDs, microcavity laser, photodetectors etc.
- Far reaching applications: single photon emission, collective quantum state of light, super resolution microscopy, bio applications
I am an energetic, creative, female scientist with a solid expertise in Material Science and Technology. I have successfully implemented an engineering approach to guide the development of functional nanohybrids through general and simple routes. Throughout my work, I have introduced important mechanisms on the cooperative coupling of dissimilar materials in single structures, which represents a fundamental knowledge for the creation of a new-generation of nano and macro hybrid materials.
I obtained my PhD degree in applied physics at Ghent University in 2009, studying near-infrared lead salt quantum dots. This was followed by a postdoc on quantum dot emission dynamics at Ghent University in collaboration with the IBM Zurich research lab. In 2012 I joined the Istituto Italiano di Tecnologia, where I led the Nanocrystal Photonics Lab in the Nanochemistry Department. In 2017 I returned to Ghent University as associate professor, focusing mostly on 2D and strained nanocrystals. The research in our group ranges from the synthesis of novel fluorescent nanocrystals to optical spectroscopy and photonic applications.
Maria Ibáñez was born in La Sénia (Spain). She graduated in physics at the University of Barcelona, where she also obtained her PhD in 2013, under the supervision of Prof. Dr. Cabot and Prof. Dr. Morante. Her PhD thesis was qualified Excellent Cum Laude and awarded with the Honors Doctorate by the University of Barcelona. Her PhD research was funded by a Spanish competitive grant (FPU) which supported her to conduct short-term research stays in cutting-edge laboratories. In particular she worked at CEA Grenoble (2009), the University of Chicago (2010), the California Institute of Technology (2011), the Cornell University (2012) and the Northwestern University (2013). In 2014, she joined the group of Prof. Dr. Kovalenko at ETH Zürich and EMPA as a research fellow where in 2017 she received the Ružička Prize. In September 2018 she became an Assistant Professor (tenure-track) at IST Austria and started the Functional Nanomaterials group.
Alexander S. Urban studied Physics at the University of Karlsruhe (Germany) obtaining an equivalent to an M.Sc. degree (German: Dipl. Phys.) at the University of Karlsruhe (Germany) in 2006. During his studies he spent a year at Heriot Watt University (UK), where he obtained an M.Phys. in Optoelectronics and Lasers in 2005. He then joined the Photonics and Optoelectronics Chair of Jochen Feldmann at the Ludwig-Maximilians-University (LMU) Munich (Germany) in 2007 where he worked on the optothermal manipulation of plasmonic nanoparticles, earning his Ph.D. summa cum laude in 2010. He expanded his expertise in the fields of plasmonics and nanophotonics in the group of Naomi J. Halas at the Laboratory for Nanophotonics at Rice University (Houston, TX, USA), beginning in 2011. He returned to the LMU in 2014 to become a junior group leader with Jochen Feldmann, where he led the research thrusts on optical spectroscopy, focusing on hybrid nanomaterials such as halide perovskite nanocrystals and carbon dots. In 2017 he was awarded a prestigious Starting Grant from the European Research Council and shortly after that in 2018 he received a call as a Full Professor of Physics (W2) at the LMU. Here, he now leads his own research group working on nanospectroscopy in novel hybrid nanomaterials.
Vanmaekelbergh's research started in the field of semiconductor electrochemistry in the 1980s; this later evolved into the electrochemical fabrication of macroporous semiconductors as the strongest light scatterers for visible light, and the study of electron transport in disordered (particulate) semiconductors. In the last decade, Vanmaekelbergh's interest shifted to the field of nanoscience: the synthesis of colloidal semiconductor quantum dots and self-assembled quantum-dot solids, the study of their opto-electronic properties with optical spectroscopy and UHV cryogenic Scanning Tunneling Microscopy and Spectroscopy, and electron transport in electrochemically-gated quantum-dot solids. Scanning tunnelling spectroscopy is also used to study the electronic states in graphene quantum dots. More recently, the focus of the research has shifted to 2-D nano structured semiconductors, e.g. honeycomb semiconductors with Dirac-type electronic bands.
Kaifeng Wu obtained his B.S. degree in materials physics from University of Science and Technology of China (2010) and his PhD degree in physical chemistry from Emory University (2015). After his postdoc training at Los Alamos National Laboratory, he moved to China to start his independent research in 2017. His current work focuses on the ultrafast spectroscopy of carrier and spin dynamics in low-dimensional optoelectronic materials, as well as relevant applications in quantum information and energy conversion technologies. He is the winner of the 2022 Distinguished Lectureship Award by the Chemical Society of Japan, 2021 Future of Chemical Physics Lectureship Award by the American Physical Society, 2020 Chinese Chemical Society Prize for Young Scientists, 2019 Robin Hochstrasser Young Investigator Award by the Chemical Physics journal, and 2018 Victor K. LaMer Award by the American Chemical Society. He also serves as the Editorial Advisory Board of J. Phys. Chem. Lett.