Lead halide perovskites have become a game changer for solar cells and light-emitting devices. In spite of intense, worldwide studies in recent years, there are still challenges to overcome, and also, new opportunities to explore. One of the major challenges is the toxicity of lead-halide perovskites. Researchers have been searching for a lead-free perovskite compound alternative, in the hope of developing a cost-effective, highly efficient and environment-friendly PV technology. In terms of new opportunities, the fundamental aspects of halide perovskites (hot carriers, polarons, excitons, defects, anharmonicity, self-trapping) continues to fascinate the community, and understanding these fundamentals may help design future, super-high efficiency devices. Further opportunities exist in the field of quantum information and quantum optics, which stimulate nascent research into spins and chirality, exciton fine structures and exciton-polaritons in halide perovskite. Thus, it is necessary and timely to hold a symposium on new materials, new mechanisms, and new opportunities to collect the most recent, cutting-edge progress and insights into these related fields.
- New mechanisms and new phenomena in halide perovskites:
- Advanced spectroscopy studies, hot carriers, polarons, excitons
- Spins and chirality, exciton fine structure, quantum light-sources, exciton-polaritons
- New computational insights, defects, anharmonicity, self-trapping
- Lead-free Perovskite-Tin perovskite, double perovskite, perovskite-inspired materials:
- Suppression of tin oxidation in tin perovskite, defects in tin perovskite/double perovskite
- Perovskite-inspired metal halides and chalcogenides
- Energetic level alignment modification
- Additive incorporation, novel ETM/HTM, Novel device structure
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.
Iván Mora-Seró (1974, M. Sc. Physics 1997, Ph. D. Physics 2004) is researcher at Universitat Jaume I de Castelló (Spain). His research during the Ph.D. at Universitat de València (Spain) was centered in the crystal growth of semiconductors II-VI with narrow gap. On February 2002 he joined the University Jaume I. From this date until nowadays his research work has been developed in: electronic transport in nanostructured devices, photovoltaics, photocatalysis, making both experimental and theoretical work. Currently he is associate professor at University Jaume I and he is Principal Researcher (Research Division F4) of the Institute of Advanced Materials (INAM). Recent research activity was focused on new concepts for photovoltaic conversion and light emission based on nanoscaled devices and semiconductor materials following two mean lines: quantum dot solar cells with especial attention to sensitized devices and lead halide perovskite solar cells and LEDs, been this last line probably the current hottest topic in the development of new solar cells.
Atsushi Wakamiya received his Ph.D. degree from Kyoto University in 2003. He began his academic carreer at Nagoya University as an assistant professor in 2003. In 2010, he moved to Kyoto University as an associate professor and was promoted to full professor in 2018. He received several awards: The Chemical Society of Japan Award for Creative Work (2020), Commendation for Science and Technology by MEXT Japan: Award for Science and Technology Research Category (2022), etc. He is a project leader of the Green Innovation Program (NEDO) and JST-Mirai Program. He is a co-founder and a director (as Chief Scientific Officer, CSO) of “EneCoat Technologies, Co. Ltd.”, a startup company for perovskite solar modules. His research interests include physical organic chemistry, elemental chemistry and materials chemistry.