The compositional versatility of halide perovskites makes this class of semiconductors highly attractive for multiple optoelectronic applications. Specifically, tin- and mixed tin-lead systems offer unique functionality due to their narrow bandgaps, enabling near-infrared (NIR) light absorption and emission. This property opens avenues for scalable, low-cost and efficient single-junction and all-perovskite tandem solar cells, as well as photodetectors and light-emitting diodes (LEDs) for NIR sensing and imaging. Despite the rapid progress of this field, a comprehensive understanding of these technologies, from both fundamental and applied viewpoints, is needed for further advancements.
This symposium will gather experts to present and discuss the latest developments on narrow bandgap perovskite and their device applications. Topics will span from narrow bandgap perovskite photovoltaics (including tandem solar cells) to NIR perovskite LEDs and photodetectors. Emphasis will be placed on material and device engineering innovations, as well as on cutting-edge characterisation techniques to probe crystallisation, degradation and carrier dynamics.
We will delve into the fundamental aspects governing material behaviour to identify design rules towards high performance and stability. We invite scientists from diverse disciplines and backgrounds to contribute to this symposium, aiming to stimulate cross-field collaboration and knowledge exchange in this rapidly evolving area.
- Tin-lead and tin perovskite solar cells
- All-perovskite tandem solar cells
- Near-infrared perovskite photodetectors and LED
- Fabrication and processing advances in tin and tin-lead perovskites
- Innovations in device architectures and charge transport layers
- Advanced characterization techniques (e.g., in-situ measurements, surface and interface characterization)
- Fundamental studies on tin and tin-lead perovskite (crystallization, degradation, charge carrier dynamics, defect physics, etc.
- Theoretical studies
Dr Luis Lanzetta is a Postdoctoral Fellow at King Abdullah University of Science and Technology (KAUST, KSA). He obtained his PhD in Chemistry at Imperial College London (UK) in 2020, where he focused on developing eco-friendly, tin-based perovskites for photovoltaic and light-emitting applications. His research focuses on next-generation materials for energy harvesting. Specifically, his expertise lies in the chemical degradation and stabilisation mechanisms of halide perovskite solar cells, aiming to provide design rules towards more efficient and stable technologies. He is additionally interested in molecular doping approaches for narrow-bandgap perovskites, as well as the spectroscopic and surface characterisation of this class of materials.
Google Scholar: https://scholar.google.com/citations?user=OcCV1VUAAAAJ&hl=es
Dr. Annalisa Bruno is an Associate Professor Nanyang Technological University (ERI@N), coordinating a team working on perovskite solar cells and modules by thermal evaporation. Annalisa is also a tenured Scientist at the Italian National Agency for New Technologies, Energy, and Sustainable Economic Development (ENEA). Previously, Annalisa was a Post-Doctoral Research Associate at Imperial College London. Annalisa received her B.S., M.S., and Ph.D. Degrees in Physics from the University of Naples Federico II. Her research interests include perovskite light-harvesting and charge generation properties and their implementation in solar cells and optoelectronic devices.
Saif HaqueLaura Herz is a Professor of Physics at the University of Oxford. She received her PhD in Physics from the University of Cambridge in 2002 and was a Research Fellow at St John's College Cambridge from 2001 - 2003 after which she moved to Oxford. Her research interests lie in the area of organic and organic/inorganic hybrid semiconductors including aspects such as self-assembly, nano-scale effects, energy-transfer and light-harvesting for solar energy conversion.
René Janssen is university professor at the Eindhoven University of Technology (TU/e). He received his Ph.D. in 1987 from the TU/e for a thesis on electron spin resonance and quantum chemical calculations of organic radicals in single crystals. He was lecturer at the TU/e since 1984, and a senior lecturer in physical organic chemistry since 1991. In 1993 and 1994 he joined the group of Professor Alan J. Heeger (Nobel laureate in 2000) at the University of California Santa Barbara as associate researcher to work on the photophysical properties of conjugated polymers. Presently the research of his group focuses on functional conjugated molecules and macromolecules as well as hybrid semiconductor materials that may find application in advanced technological applications. The synthesis of new materials is combined with time-resolved optical spectroscopy, electrochemistry, morphological characterization and the preparation of prototype devices to accomplish these goals. René Janssen has co-authored more than 600 scientific papers. He is co-recipient of the René Descartes Prize from the European Commission for outstanding collaborative research, and received the Research Prize of The Royal Institute of Engineers and in The Netherlands for his work. In 2015 René Janssen was awarded with the Spinoza Prize of The Dutch Research Council.
Meng Li is a Professor and Ph.D. supervisor at Henan University, affiliated with the School of Nanoscience and Material Engineering / the Key Laboratory for Special Functional Materials. He also serves as a Youth Editorial Board Member of Appl. Phys. Lett. and eScience.
He earned his Ph.D. in Materials Science and Engineering from Soochow University in 2018, under the mentorship of Prof. Liangsheng Liao and Prof. Zhaokui Wang. From 2018 to 2021, Meng conducted postdoctoral research at Helmholtz-Zentrum Berlin (HZB) with Prof. Antonio Abate. During this period, he received the Sino-German Cooperation Program Scholarship (OCPC), collaborating with Academician Yongfang Li as his Chinese advisor, and from 2020 to 2021, he pursued exchange research at EPFL in Prof. Michael Grätzel's group.
Meng's research focuses on semiconductor photovoltaic and light-emitting devices, with particular expertise in perovskite photovoltaic technologies. His work explores large-area perovskite modules, device interface engineering, and crystal dynamics, contributing to advancements in sustainable energy solutions.
He has published over 80 papers in leading journals, such as Science, Nature, Nat. Rev. Mater., Nat. Commun., Adv. Mater., J. Am. Chem. Soc., Energy Environ. Sci., and Angew. Chem. Int. Ed., accumulating more than 8,000 citations and an h-index of 51 (Google Scholar). As a corresponding or first author, Meng has contributed over 40 papers, including Science (1), Nature (1), Nat. Rev. Mater. (1), Nat. Photonics (1), Nat. Commun. (1), Adv. Mater. (10), J. Am. Chem. Soc. (1), Light Sci. Appl. (1), Energy Environ. Sci. (2), Angew. Chem. Int. Ed. (3), Sci. Bull. (1), Adv. Energy Mater. (9), Adv. Funct. Mater. (3), ACS Energy Lett. (2), Nano Energy (3), and Appl. Phys. Lett. (1).
His research has been supported by significant funding, including grants from the National Natural Science Foundation of China (General and Youth Programs), the Henan Province Science and Technology R&D Program Joint Fund, the Postdoctoral International Exchange Program Fund, and the Henan University Innovation Youth Team Fund.
Chieh-Ting Lin is an Associate Professor in the Department of Chemical Engineering at National Chung Hsing University, Taiwan. He received his PhD in Materials Science from Imperial College London in 2020, and subsequently carried out postdoctoral research at Imperial College London and the Gwangju Institute of Science and Technology. His research focuses on the development of high-efficiency thin-film solar cells, particularly hybrid tin–lead perovskites, with an emphasis on interface engineering, stability enhancement, and scalable fabrication. His group integrates advanced spectroscopic and device-physics characterization techniques to advance renewable energy conversion technologies for sustainable applications.
Maria Antonietta Loi studied physics at the University of Cagliari in Italy where she received the PhD in 2001. In the same year she joined the Linz Institute for Organic Solar cells, of the University of Linz, Austria as a post doctoral fellow. Later she worked as researcher at the Institute for Nanostructured Materials of the Italian National Research Council in Bologna Italy. In 2006 she became assistant professor and Rosalind Franklin Fellow at the Zernike Institute for Advanced Materials of the University of Groningen, The Netherlands. She is now full professor in the same institution and chair of the Photophysics and OptoElectronics group. She has published more than 130 peer review articles in photophysics and optoelectronics of nanomaterials. In 2012 she has received an ERC starting grant.
Angus Hin-Lap Yip earned his BSc and MPhil in Materials Science from The Chinese University of Hong Kong (CUHK), and a PhD from the University of Washington. He was a professor at the State Key Laboratory of Luminescent Materials and Devices at South China University of Technology (SCUT) from 2013 to 2020. Since 2021, he has been a professor at the City University of Hong Kong's Department of Materials Science and Engineering and School of Energy and Environment, and since 2022, the Associate Director of the Hong Kong Institute for Clean Energy (HKICE). His recognitions include being a Young Member of the Hong Kong Academy of Sciences (2022) and the Hong Kong Academy of Engineering (2024), a Fellow of the Royal Society of Chemistry (2023), a Fellow of the Hong Kong Institution of Engineers (2024), and an Optica Fellow (2025). He was the winner of the International Union of Materials Research Societies Award and the Hong Kong Science and Technology Award (2023). He was appointed as an RGC Senior Research Fellow in 2025. His research focuses on advanced optoelectronic materials, especially in solar and LED technologies. Dr. Yip has published over 300 articles in leading journals, garnering more than 50,000 citations with an H-index greater than 110. He has been a Clarivate Highly Cited Researcher from 2014 to 2025.