This symposium will cover the interplay between the structural features of halide perovskites and the physical
processes determining their optoelectronic performance. The discussion on the lattice role will include electrical and
optical ultrafast spectroscopic techniques (such as transient absorption, impedance, capacitance and
photoluminescence) to monitor the carrier dynamics, carrier-phonon interactions, exciton dynamics, polaron
formation etc. These will be related to the direct observation of perovskite’ structural characteristics in the
nanometric scale, as well as to the results obtained by other structural analysis tools such as Raman and IR
spectroscopies among others. These results will be complemented by modelling works discussing the nature of the
charge within the material, including the theoretical calculations to the discussion. Advances on the understanding of
these mechanisms will be key to exploit the full potential of perovskites, and design the most efficient light emitting
diodes, solar cells and lasers. The viability of further halide perovskites applications, such as hot-carrier, multiband
or multiple exciton generation photovoltaics, will be subject to the structure interactions as well, through processes
such as carrier scattering and thermalization.
- Ultrafast spectroscopy fundamentals
- Microscopic structural characterization
- Elemental nanoscale mapping
- Exciton-phonon interactions
- Structural modelling
- Raman spectroscopy
- Carrier-phonon interactions
- Exciton dynamics
- Dielectric characterization
- Impedance spectroscopy
Pablo P. Boix, Ph.D. in Nanoscience, is a Research Scientist at Instituto de Tecnologia Química (CSIC). He led a pioneer perovskite research team at Nanyang Technological University (NTU), Singapore (2012-2016) with relevant contributions to materials and devices’ development (such as the first use of formamidinium cation in perovskite solar cells). His track record has more than 100 publications, which resulted in his selection as a Highly Cited Researcher in 2020 (Cross-Field) by Clarivate Web of Science, with an h index of 57. Dr. Boix is the co-inventor of 3 patents in the field of perovskite optoelectronics. Prior to his current position, he worked as a research group leader in a perovskite solar cell company (Dyesol Ltd, Switzerland), focusing on product R&D, and at Universitat de València. Currently, he is the PI of 2 research projects and the coPI of 3, including regional, national, and European funding.
Born in the Netherlands,David Cahen studied chemistry & physics at the Hebrew Univ. of Jerusalem (HUJ), Materials Research and Phys. Chem. at Northwestern Univ, and biophysics of photosynthesis (postdoc) at HUJ and the Weizmann Institute of Science, WIS. After joining the WIS faculty he focused on alternative sustainable energy resources, in particular various types of solar cells. In parallel he researches hybrid molecular/non-molecular systems, focusing on understanding and controlling electronic transport across (bio)molecules. He is a fellow of the AVS and the MRS. He heads WIS' Alternative, sustainable energy research initiative.
Germà Garcia-Belmonte (1964) received his Ph.D. degree at UNED, 1996. He worked (1988-1992) at CIEMAT, Madrid, on experimental and theoretical research in the area of digital processing of nuclear signal. He joined the Universitat Jaume I, Castelló, in 1992 and currently works as a Full Professor of Applied Physics (2010) at the Institute of Advanced Materials. He published 198 papers in research journals, and has 12.000 citations and h-index 54 (WOS). He is recognized as 2018 Highly Cited Research (Clarivate Analytics) in the cross-field category. He studied intercalation processes in oxides and polymer films by impedance methods. He follows researches in various areas within the field of Organic Electronics and photovoltaics as electronic mechanisms in organic light-emitting diodes, organic photovoltaics, and plastic and thin-film solar cells. He is currently conducting researches in the topic of perovskite-based solar cells. Also of interest is the electrochemical kinetics of electrodes for batteries. Device physics using impedance spectroscopy (including modeling and measuring) is his main subject.
Selina Olthof studied physics at the University of Stuttgart (Germany) and completed her master's thesis at the Max Planck Institute for Solid State Research. In 2010, she earned her Ph.D. from the University of Dresden under Karl Leo, followed by a two-year postdoctoral stay at Princeton University with Antoine Kahn. From 2012 to 2024, she led the Surface Science Research Group in the Department of Chemistry at the University of Cologne. Recently, she was appointed Full Professor at the University of Wuppertal, where she established the Chair of Material and Surface Analysis. Her research focuses on advancing the understanding of the electronic structure of novel semiconducting materials, particularly organic semiconductors and hybrid perovskites.
Annamaria Petrozza received her PhD in Physics from the University of Cambridge (UK) in 2008 with a thesis on the study of optoelectronic processes at organic and hybrid semiconductors interfaces under the supervision of Dr. J.S. Kim and Prof Sir R.H. Friend. From July 2008 to December 2009 she worked as research scientist at the Sharp Laboratories of Europe, Ltd on the development of new market competitive solar cell technologies (Dye Sensitized Solar cells/Colloidal Quantum Dots Sensitized Solar cells). Since January 2010 she has a Team Leader position at the Center for Nano Science and Technology -IIT@POLIMI. She is in charge of the development of photovoltaic devices and their characterization by time-resolved and cw Photoinduced Absorption Spectroscopy, Time-resolved Photoluminescence and electrical measurements. Her research work mainly aims to shed light on interfacial optoelectronic mechanisms, which are fundamental for the optimization of operational processes, with the goal of improving device efficiency and stability.
Prof. Qing Shen received her Bachelor’s degree in physics from Nanjing University of China in 1987 and earned her Ph.D. degree from the University of Tokyo in 1995. In 1996, she joined the University of Electro-Communications, Japan and became a full professor in 2016. In 1997, she got the Young Scientist Award of the Japan Society of Applied Physics. In 2003, she got the Best Paper Award of the Japan Society of Thermophysical Properties and the Young Scientist Award of the Symposium on Ultrasonic Electronics of Japan. In 2014, she got the Excellent Women Scientist Award of the Japan Society of Applied Physics. Her current research focuses on three interconnected areas: (1) the synthesis, optical properties, and optoelectronic applications of nanocrystal quantum dots; (2) mechanistic investigations into photoexcited carrier dynamics—such as hot carrier relaxation, multiple exciton generation, interfacial charge transfer, and recombination—to improve the efficiency of quantum dot, perovskite, and organic solar cells, as well as light-emitting devices (LEDs); (3) interface engineering for enhancing the performance of photovoltaics and LEDs. Over the past five years, she has published more than 100 high-impact papers in leading journals such as Nature Energy, Chemical Society Reviews, Advanced Energy Materials, Advanced Materials, Journal of the American Chemical Society, and Angewandte Chemie International Edition, which have been cited over 12,000 times.
Juan Bisquert (pHD Universitat de València, 1991) is a Distinguished Research Professor at Instituto de Tecnología Química (Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas). He is Executive Editor for Europe of the Journal of Physical Chemistry Letters. He has been distinguished in the list of Highly Cited Researchers from 2014 to 2024. The research activity of Juan Bisquert has been focused on the application of measurement techniques and physical modeling in several areas of energy devices materials, using organic and hybrid semiconductors as halide perovskite solar cells. Currently the main research topic aims to create miniature devices that operate as neurons and synapses for bio-inspired neuromorphic computation related to data sensing and image processing. The work on this topic combines harnessing hysteresis and memory properties of ionic-electronic conducting devices as memristors and transistors towards computational networks. The work is supported by European Research Council Advanced Grant.