Hybrid Perovskite Solar Cells—A Game Changer for Near-Future Photovoltaics
Within the photovoltaics (PVs) framework, the last decade has been facing a revolution with the advance of a
breakthrough technology that can radically transform the energy sector: hybrid perovskite (HP) solar cells.
HPs have been skyrocketing in terms of conversion efficiency, nowadays beyond 25%, approaching those of
crystalline Si cells.1 As opposed to Si, HP solar cells are processed with low-temperature and low-cost solution processes
and less technologically intensive methods.2 However, presently, the technology is still not mature
for industrialization. Silicon cells last 25 years, while HP cells have yet to be sufficiently proven under such
environmental stressors as moisture and heat. Many strategies, as the surface passivation with low-
dimensional perovskite I will present are now revolutionizing this intensely investigated field, making
perovskites durable.3
In this talk, I will discuss the enormous potential of this class of materials used in advanced solar cells,
presenting the current strategies to bring HP cells as an active player in the near future PV scene. In particular,
engineering low-dimensional HPs is nowadays a popular way for efficient and stable devices.4 Used in
combination with standard HPs, such class of materials can offer a stability boost acting as a sheath to
physically protect the HP underneath.3 The judicious choice of the material constituents is decisive to control
the device interfaces and improve the device efficiency, bringing to pin solar cells with record PCE of 23.7%,4
1http://www.nrel.gov/ncpv/images/efficiency_chart.jpg
2A. Sutanto et al. Chem 7, 1903–1916 (2021)
3G. Grancini, M.K. Nazeeruddin, Nat. Rev. Mater. 4, 4–22 (2019)
4M. Degani et al. Sci. Adv. 7, 1–9 (2021)