A Eu3+-Eu2+ ion redox shuttle imparts operational durability to Pb-I perovskite solar cells

Redox Shuttle Additives for Lithium-Ion Battery

Perovskite Solar Cells

Two-dimensional hybrid perovskites are used as absorbers in solar cells. Our first-generation devices containing (PEA)2(MA)2[Pb3I10] (1; PEA=C6H5(CH2)2NH3 , MA= CH3NH3 ) show an open-circuit voltage of 1.18 V and a power conversion efficiency of 4.73%. The layered structure allows for high-quality films to be deposited through spin coating and high-temperature annealing is not required for devi...

Perovskite solar cells: Continuing to soar.

845 news & views occur when deliberately using specific non-stoichiometric growth conditions. Until now, it had been generally thought that Ruddlesden–Popper phases grow in the same layer-by-layer order that their constituent monolayers are deposited. These latest results undermine this assumption, with dramatic consequences for the controlled production of high-quality thin films and their res...

Introducing Perovskite Solar Cells to Undergraduates.

I this Viewpoint, we show that it is sufficiently easy and cheap to fabricate a perovskite solar cell that this can be done as an undergraduate laboratory experiment. Solar cells, which have been around since the 1950s, are considered as a prominent source of renewable energy in the future. Conventional solar cells, which are used in rooftop applications, are based on single-crystal silicon and...

Perovskite solar cells: from materials to devices.

Perovskite solar cells based on organometal halide light absorbers have been considered a promising photovoltaic technology due to their superb power conversion efficiency (PCE) along with very low material costs. Since the first report on a long-term durable solid-state perovskite solar cell with a PCE of 9.7% in 2012, a PCE as high as 19.3% was demonstrated in 2014, and a certified PCE of 17....