Research direction of perovskite tandem solar cells

How does a 2T perovskite/Si tandem solar cell perform?

As a result, the photocurrent of perovskite top cell is increased to match the current generated by Si bottom cell in the 2T perovskite/Si tandem solar cell. Finally, the tandem cell achieves a high Voc of 1.80 V and thus a PCE of 25.4%. 95 On the other hand, the defects at device interfaces are also harmful to device performance.

What is the working principle of a perovskite–organic tandem solar cell?

Fig. 1: Working principle of perovskite–organic tandem solar cells. Schematic of the structure of a perovskite–organic tandem solar cell comprising a perovskite subcell (top), an interconnect (middle) and an organic subcell (bottom), highlighting the roles of each component and the charge generation mechanisms in the two subcells.

Can perovskite and Si solar cells be combined?

With the marriage of perovskite and Si solar cells, a tandem device configuration is able to achieve a PCE exceeding the Shockley–Queisser limit of single-junction solar cells by enhancing the usage of solar spectrum.

Are metal halide perovskites suitable for tandem photovoltaic (PV) devices?

Metal halide perovskites (MHPs) with tunable bandgaps and strong light absorptions in the broad spectral range of ∼ 1.2–2.3 eV make them suitable candidates as light absorber in tandem photovoltaic (PV) devices. This review presents the latest progress and limitations of all perovskite tandem solar cells (AP-TSCs) with different configurations.

What are the advantages of perovskite-based Tandem solar cells?

Among perovskite-based tandem solar cells, all-perovskite tandem solar cells can sufficiently leverage the unique advantages of perovskite materials, including high performance, low cost, easy fabrication process, and compatibility with flexible substrates.

How do perovskite-organic tandem cells work?

Most efficient perovskite–organic tandem cells currently use the p–i–n architecture (Fig. 4a), in which the interconnect joins the electron extraction layer (EEL) of the perovskite wide-gap subcell with the hole extraction layer (HEL) of the narrow-gap organic subcell, which is typically processed on top.