Improving the Stability and Efficiency of Perovskite Solar Cells by a Bidentate Anilinium Salt

We report improvement in the perovskite solar cell efficiency and stability after passivation with an organic molecule decorated with two anilinium cations. We compare this salt with its neutral analog and found that the change in the electron density distribution upon protonation and the presence o...

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Bibliographic Details
Published inJACS Au Vol. 2; no. 6; pp. 1306 - 1312
Main Authors Scalon, Lucas, Szostak, Rodrigo, Araújo, Francineide L., Adriani, Karla F., Silveira, Julian F. R. V., Oliveira, Willian X. C., Da Silva, Juarez L. F., Oliveira, Caio C., Nogueira, Ana Flávia
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 27.06.2022
Subjects
Letter
aggregation-induced luminogen
DFT calculation
rational synthesis
stable perovskite solar cells
defect passivation
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Summary:We report improvement in the perovskite solar cell efficiency and stability after passivation with an organic molecule decorated with two anilinium cations. We compare this salt with its neutral analog and found that the change in the electron density distribution upon protonation and the presence of the halide anion are key to explaining the better passivation ability of the salt. In addition, we show that the counteranion has a significant impact on the performance of the device.
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ISSN:2691-3704
2691-3704
DOI:10.1021/jacsau.2c00151