Solar cells based on the mineral perovskite are reaching new efficiency highs and emerging as a promising photovoltaic technology. But there is room for further improvement, especially for thin-film flexible solar cells, where perovskites could find wide application. Before this can happen, however, the trade-off between thinner films of perovskite and dropping light absorption need to be addressed. Researchers from i3N/CENIMAT in Portugal have come up with a new optical strategy that allows for a thinner perovskite layer while boosting light absorption [Haque et al., Applied Materials Today 20 (2020) 100720 https://doi.org/10.1016/j.apmt.2020.100720 ].
“We propose an unprecedented optical strategy by designing wave-optical structured substrates that can significantly enhance light harvesting across the main solar spectrum, particularly in ultra-thin PSCs, which will be the key to realize high-efficiency and flexible solar cells,” say Sirazul Haque and Manuel João Mendes.
Read the full news item in: https://www.materialstoday.com/optical-materials/news/micropatterned-perovskite-traps-light-better/