Research on passivation of perovskite tandem cells

Can passivation materials reduce interface and surface defect states in perovskite solar cells?

To address these issues, intensive research effort has been devoted recently to the development of passivation materials and approaches that can reduce the amount of interface and surface defect states in perovskite solar cells.

Can perovskite top cells achieve high photocurrents in tandem solar cells?

Chin et al. report the uniform deposition of the perovskite top cell on the micropyramids of crystalline silicon cells to achieve high photocurrents in tandem solar cells. Two different phosphonic acids improved the perovskite crystallization process and also minimized recombination losses.

Are perovskite-organic tandem solar cells efficient?

Brinkmann, K. O. et al. Perovskite–organic tandem solar cells. Nat. Rev. Mater. 9, 202–217 (2024). Chen, W. et al. Monolithic perovskite/organic tandem solar cells with 23.6% efficiency enabled by reduced voltage losses and optimized interconnecting layer.

Can perovskite layers be modified to improve solar performance?

Two studies show how interfaces between perovskite layers and silicon cells in tandem solar cells can be modified to improve performance (see the Perspective by De Wolf and Aydin).

How does a perovskite passivation mechanism work?

Two passivation mechanisms exist: one involves growing a wide bandgap perovskite passivation layer in situ on the perovskite surface, effectively eliminating surface defects , while the other employs chemical bonding to passivate surface defects on the perovskite .

Do perovskite layer enhancements improve PSC performance?

This work summarizes the impact of perovskite layer enhancements on the performance of PSCs. The passivation of perovskite solar cells optimizes the morphology of the perovskite layer through direct and indirect passivation, improving photoelectric conversion efficiency and stability. 1. Introduction