Metal halide perovskites have emerged as leading candidates for next‑generation photovoltaics, yet their long‑term stability remains a barrier to commercialization. In‑situ characterization and post‑mortem analyses during accelerated ageing tests have been instrumental in uncovering the dominant degradation pathways. Building on these insights, recent advances in perovskite bulk chemistry, interfacial design, charge‑transport layers, and encapsulation strategies have enabled degradation mitigation and enhanced device durability. At the absorber level, additive engineering, through crystallization agents, has significantly reduced defect densities, suppressed ion migration and hence, prolonged devices’ longevity. Meanwhile, parallel efforts towards fully inorganic 3D perovskites, low‑ionic (non-alloyed) compositions, and solvent-free deposition routes such as vacuum processing have further strengthened intrinsic material stability. Interface engineering using hydrophobic molecular passivants, metal oxides, or 2D perovskite layers has proven effective in shielding the absorber from environmental stressors. Furthermore, implementation of inorganic metal‑oxide transport layers and the optimization of self‑assembled monolayers has reduced contact‑induced degradation. Finally, novel encapsulation strategies are enabling improved operational stability under real‑world outdoor conditions of perovskite solar cells. Within this context, #PeroStability will highlight technological developments and fundamental scientific insights, supported by advanced characterizations, thereby establishing a framework for assessing recent progress in perovskite stability and identifying the next steps toward commercialization.
- Microstructural defects
- Phase segregation & ion migration
- In-situ characterization and post-mortem analysis
- Molecular engineering for perovskite bulk and interfaces
- Precursor ink chemistry
- Two-dimensional (2D) perovskites
- Stable charge transport layers
- Encapsulation materials
- Accelerated ageing tests
Dr. Randi Azmi received his Ph.D. from Kookmin University in South Korea in 2020, during which time he was also affiliated with the Ulsan National Institute of Science and Technology (UNIST) as a senior researcher. He was a Postdoctoral Researcher (2020) and then promoted as a Research Scientist (2024) at the King Abdullah University of Science and Technology (KAUST) in Saudi Arabia. He is currently an Assistant Professor and Presidential Young Fellow at the Chinese University of Hong Kong Shenzhen (CUHK-SZ), China. He is now the leading HEROLAB “Heterojunction Materials for Renewable Energy Lab. His group is interested in performing extensive research on high-efficiency organic and inorganic hybrid heterojunction thin-film-based single- and multi-junction solar cells. The group's objective is to develop next-generation solar cell technologies that are both efficient and stable. With this emphasis, his group approaches technological advancements from a variety of disciplines, covering fields from novel materials to device fabrication, involving process and material optimization, and evaluating solar cells in realistic working environments, with the goal of advancing them to an industrial level.
He has authored/co-authored over 45 papers (h-index = 30, citations over 4300) in renowned journals, such as Science (4), Nature (2), Joule (3), Nature Communication (2), Advanced Materials (2), Advanced Energy Materials (7), and ACS Energy Letters (7), etc. In 2022, he received the ASEAN Young Scientist Award for his exceptional contributions to science, technology, and innovation pioneer. He was recently awarded the Outstanding Young Talent Program (overseas) by the National Natural Science Foundation of China 2024 and Shenzhen Talent Peacock 2024.
Jacky Even was born in Rennes, France, in 1964. He received the Ph.D. degree from the University of Paris VI, Paris, France, in 1992. He was a Research and Teaching Assistant with the University of Rennes I, Rennes, from 1992 to 1999. He has been a Full Professor of optoelectronics with the Institut National des Sciences Appliquées, Rennes,since 1999. He was the head of the Materials and Nanotechnology from 2006 to 2009, and Director of Education of Insa Rennes from 2010 to 2012. He created the FOTON Laboratory Simulation Group in 1999. His main field of activity is the theoretical study of the electronic, optical, and nonlinear properties of semiconductor QW and QD structures, hybrid perovskite materials, and the simulation of optoelectronic and photovoltaic devices. He is a senior member of Institut Universitaire de France (IUF).
Giulia is Full Professor at Physical Chemistry Unit at University of Pavia, leading the PVsquared2 team, and running the European Grant ERC Cog Project ELOWDI aiming at the development of advanced hybrid perovskites materials and innovative functional interfaces for efficient, cheap and stable photovoltaics. Within this field, Giulia contributed to reveal the fundamental lightinduced dynamical processes underlying the operation of such advanced optoelectronic devices whose understanding is paramount for a smart device development and for contributing to the transition of a green economy.
Giulia received an MS in Physical Engineering in 2008 and obtained her PhD in Physics cum laude in 2012 at the Politecnico of Milan. Her experimental thesis focused on the realisation of a new femtosecond-microscope for mapping the ultrafast phenomena at organic interfaces. During her PhD, she worked for one year at the Physics Department of Oxford University where she pioneered new concepts within polymer/oxide solar cell technology. From 2012-2015, she was a post-doctoral researcher at the Italian Institute of Technology in Milan. In 2015, she joined the Ecole Polytechnique Fédérale de Lausanne (EPFL) with a Co-Funded Marie Skłodowska-Curie Fellowship. From 2016 to 2019, she has been awarded by the Swiss Ambizione Energy Grant providing a platform to lead her independent research group at EPFL focused on the developemnt of new generation hybrid perovskite solar cells.
She is author of 160 peer-reviewed scientific papers focused on developement and understanding of the interface physics which governs the operation of new generation solar cells.
Recently, she received the USERN prize in Physical Science, the Swiss Physical Society Award in 2018 for Young Researcher and the IUPAP Young Scientist Prize in Optics. She is currently USERN Ambassador for Italy and board member of the Young Academy of Europe.
More can be found at https://pvsquared2.unipv.it.
Jarla Thiesbrummelsince Sept. 2017
Group leader Outdoor Performance, PVcomB
2014 - 2017
Test manager, responsible for diagnostics, function owner in advanced driver assistant system series development, Carmeq GmbH, Berlin (Volkswagen subsidiary)
2009-2014
Scientist in groups Solar Cell and Module Characterization und Device Simulation, Forschungszentrum Jülich
2012-2013
Visiting scientist in PV Module Reliability Test and Evaluation Group, National Renewable Energy Laboratory, Golden, CO, USA (NREL)
2007-2009
Scientist in group Photovoltaics, Institute of Physical Electronics, University of Stuttgart
2005-2007
Scientist in group Soil Physics, Institute for Environmental Physics, University of Heidelberg
Education
2011
Dissertation at RWTH Aachen, title of thesis: ‘Spectral and Directional Dependence of Light- Trapping in Solar Cells’, carried out at Forschungszentrum Jülich
2005
Diploma in Physics, diploma thesis at Institute for Environmental Physics, University of Heidelberg, ‘Monitoring Field Tracer Experiment with Ground Penetrating Radar and Time Domain Reflectometry’
2004
IASTE exchange in quantum electronics, Federal University of Rio de Janeiro, Brazil
2001-2002
ERASMUS exchange, Instituto Superior Técnico, University of Lisbon, Portugal
2001
Vordiplom in Physics, University of Freiburg
Miscellaneous
Systemic Coach, trained at German Society of Positive Psychology, Berlin
Trainer for Positive Psychology (both certified at DGPP)
Mathias Uller RothmannLuigi Vesce is an Assistant Professor at the University of Rome Tor Vergata, teaching Computer Science, Physics, and Nanoelectronics. His research focuses on printable electronics, next-generation photovoltaics, thin-film deposition, and condensed matter physics. He developed a pilot line producing 10,000 m²/year of DSSC panels for BIPVs. He has authored over 95 publications, serves on editorial boards of leading journals, has presented at 40+ international conferences, and leads multiple national and international research projects.