Building a tandem structure is an effective strategy to enhance the photovoltaic performance of solar cells. In the realization of a two-terminal tandem device, the charge recombination layer (CRL) plays an essential role. In the current study, we demonstrate the first bottom-up solution-processed two-termin
Monolithic two-terminal (2T) perovskite/CuInSe 2 (CIS) tandem solar cells (TSCs) combine the promise of an efficient tandem photovoltaic (PV) technology with the simplicity of an all-thin-film device architecture that is compatible with flexible and lightweight PV.
Two and four-terminal silicon/perovskite tandem solar cells are studied. Progress and major challenges on tandem structures are highlighted. Perovskite and silicon solar cells with their impact on tandem cells are presented. Future directions propose the performance of tandem solar cells beyond 30% efficiency.
Meanwhile, the efficiency of two-terminal all-perovskite tandem solar cells has also plunged from 10.8% in 2016 to 24.9% in 2019 [ 3, 11 ]. In 2019, Lin et al. reported an approach to reduce vacancies in narrowband mixed tin (Sn)- lead (Pb) perovskite.
In 2T tandem devices, the constituting top and bottom solar cells are usually connected in series, leading to an addition of the generated voltages and a recombination of the photogenerated currents of each subcell at the junction.
Zhao et al. made a four-terminal all-perovskite tandem solar cell with 17.6% efficiency; later on, they made two-terminal all-perovskite tandem solar cell with enhanced 21% efficiency [ 19, 20 ].