Inorganic-Derived 0D Perovskite Induced Surface Lattice Arrangement for Efficient and Stable All-Inorganic Perovskite Solar Cells.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 39152921.
- Also identified by DOI 10.1002/adma.202408387.
- No licence information is recorded for this record.
- Because redistribution is not established, this page shows the abstract only. Follow the links below for the full text.
Abstract
The inverted inorganic CsPbI<sub>3</sub> perovskite solar cells (PSCs) are prospective candidates for next-generation photovoltaics owing to inherent robust thermal/photo-stability and compatibility for tandems. However, the performance and stability of the inverted CsPbI<sub>3</sub> PSCs fall behind the n-i-p counterparts due to poor energetic alignment and abundant interfacial defect states. Here, an inorganic 0D Cs<sub>4</sub>PbBr<sub>6</sub> with a good lattice strain arrangement is implemented as the surface anchoring capping layer on CsPbI<sub>3</sub>. The Cs<sub>4</sub>PbBr<sub>6</sub> perovskite induces enhanced electron-selective junction and thus facilitates efficient charge extraction and effectively inhibits non-radiative recombination. Consequently, the CsPbI<sub>3</sub> PSCs with Cs<sub>4</sub>PbBr<sub>6</sub> demonstrate the highest power conversion efficiency (PCE) of CsPbI<sub>3</sub>-based inverted PSCs, reaching 21.03% PCE from a unit cell and 17.39% PCE from a module with a 64 cm<sup>2</sup> aperture area. Furthermore, the resulting devices retain 92.48% after 1000 h under simultaneous 1-sun and damp heat (85 °C / 85% relative humidity) environment.