Effect of Different Bromine Sources on the Dual Cation Mixed Halide Perovskite Solar Cells - Publikacja - MOST Wiedzy

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Effect of Different Bromine Sources on the Dual Cation Mixed Halide Perovskite Solar Cells

Abstrakt

Recent research has shown that perovskite solar cells with a mixed dual A-cation have much better structural stability without loss of efficiency than single cation devices. Mixed cation perovskites create a lot of questions about the salts being used for the formation of the best-quality layer. Here, we have investigated three sources of bromide in the perovskite absorption layer, using lead bromide (PbBr2), formamidinium bromide (FABr), and cesium bromide (CsBr). The experimental results have shown better performance for FABr and CsBr sources of bromide in comparison to the regularly used PbBr2. This effect has been explained with the complex species present in the not-annealed perovskite films which changes the defect states during the crystallization of the absorber layer. It has been found with numerical simulations that the observed phenomenon directly impacts the rates of the trap-assisted recombination. The results of this study are one more step forward in understanding the physics behind the crystallization process which is crucial in further improvement of the perovskite solar cells.

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Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach
Opublikowano w:
ACS Applied Energy Materials nr 3, strony 8285 - 8294,
ISSN: 2574-0962
Język:
angielski
Rok wydania:
2020
Opis bibliograficzny:
Głowienka D., Giacomo Di F., Najafi M., Dogan I., Mameli A., Colberts F., Szmytkowski J., Galagan Y.: Effect of Different Bromine Sources on the Dual Cation Mixed Halide Perovskite Solar Cells// ACS Applied Energy Materials -Vol. 3,iss. 9 (2020), s.8285-8294
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1021/acsaem.0c00767
Weryfikacja:
Politechnika Gdańska

wyświetlono 192 razy

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