Overcoming C₆₀-induced interfacial recombination in inverted perovskite solar cells by electron-transporting carborane.

ABSTRACT: Inverted perovskite solar cells still suffer from significant non-radiative recombination losses at the perovskite surface and across the perovskite/C₆₀ interface, limiting the future development of perovskite-based single- and multi-junction photovoltaics. Therefore, more effective inter- or transport layers are urgently required. To tackle these recombination losses, we introduce ortho-carborane as an interlayer material that has a spherical molecular structure and a three-dimensional aromaticity. Based on a variety of experimental techniques, we show that ortho-carborane decorated with phenylamino groups effectively passivates the perovskite surface and essentially eliminates the non-radiative recombination loss across the perovskite/C₆₀ interface with high thermal

SUBMITTER: Ye F 

PROVIDER: S-EPMC9718752 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature