Brief Overview on the Development of Dye-Sensitized and Perovskite Solar Cells

Brief Overview on the Development of Dye-Sensitized and Perovskite Solar CellsAnders Hagfeldt aa Department of Chemistry – Ångström Laboratory, Uppsala University, Uppsala, SwedenInternational Conference on Hybrid and Organic PhotovoltaicsProceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV24)València, Spain, 2024 May 12th - 15thOrganizer: Bruno EhrlerInvited Speaker, Anders Hagfeldt, presentation 156DOI: https://doi.org/10.29363/nanoge.hopv.2024.156Publication date: 6th February 2024In 1991 a paradigm shift of photovoltaics occurred with the publication of a high efficiency dye-sensitized solar cells (DSSC) utilizing a high surface area nanostructured photoelectrode [1]. In my talk I will briefly overview the development of DSSCs to the present state-of-the art. The development of new photo-sensitizers for DSSC led to the breakthrough of perovskite solar cells (PSC) in 2012 [2, 3]. With efficiencies at present above 26% and close to 34% for PSC/Si tandem devices, PSC is the frontrunner of emerging photovoltaic technologies. My talk will focus on the longterm stability of PSCs as the key challenge for future industrialization. In particular, I will discuss different types of molecules that synergistically improve both power conversion efficiency and stability. For example, we have developed a class of molecules to post-treat formamidinium lead iodide (FAPbI3) perovskite films, which remains in black-phase after 2 years ageing under ambient condition without encapsulation. The treated perovskite solar cell devices show high efficiencies with less than 1% performance loss after more than 4500 h at maximum power point tracking, yielding a theoretical T80 of over 9 years under continuous 1-sun illumination [4]. Acknowledgements:[1] B. O´Regan and M. Grätzel, Nature, 353, 737 (1991). [2] H.-S. Kim, et al. Sci. Rep., | 2 : 591 | (2012). [3] M. M. Lee, et al. Science, 338, 643 (2012). [4] J. Suo et al. Nature Energy, https://doi.org/10.1038/s41560-023-01421-6 © FUNDACIO DE LA COMUNITAT VALENCIANA SCITOnanoGe is a prestigious brand of successful science conferences that are developed along the year in different areas of the world since 2009. Our worldwide conferences cover cutting-edge materials topics like perovskite solar cells, photovoltaics, optoelectronics, solar fuel conversion, surface science, catalysis and two-dimensional materials, among many others.MATSUSPreviously nanoGe Spring Meeting (NSM) and nanoGe Fall Meeting (NFM), MATSUS is a multiple symposia conference focused on a broad set of topics of advanced materials preparation, their fundamental properties, and their applications, in fields such as renewable energy, photovoltaics, lighting, semiconductor quantum dots, 2-D materials synthesis, charge carriers dynamics, microscopy and spectroscopy semiconductors fundamentals, etc.International Conference on Hybrid and Organic PhotovoltaicsInternational Conference on Hybrid and Organic Photovoltaics (HOPV) is celebrated yearly in May. The main topics are the development, function and modeling of materials and devices for hybrid and organic solar cells. The field is now dominated by perovskite solar cells but also other hybrid technologies, as organic solar cells, quantum dot solar cells, and dye-sensitized solar cells and their integration into devices for photoelectrochemical solar fuel production.Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and OptoelectronicsThe main topics of the Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP) are discussed every year in Asia-Pacific for gathering the recent advances in the fields of material preparation, modeling and fabrication of perovskite and hybrid and organic materials. Photovoltaic devices are analyzed from fundamental physics and materials properties to a broad set of applications. The conference also covers the developments of perovskite optoelectronics, including light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.International Conference on Perovskite Thin Film Photovoltaics Perovskite Photonics and OptoelectronicsThe International Conference on Perovskite Thin Film Photovoltaics Perovskite Photonics and Optoelectronics (NIPHO) is the best place to hear the latest developments in perovskite solar cells as well as on recent advances in the fields of perovskite light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.