Curing perovskites : A way towards control of crystallinity and improved stability

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2020
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Journal of Physics : Energy. Institute of Physics (IOP). 2020, 2(2), 021001. eISSN 2515-7655. Available under: doi: 10.1088/2515-7655/ab604b
Zusammenfassung

Power conversion efficiencies of lead halide perovskite solar cells have rapidly increased in the decade since their emergence, reaching 25% this year. However, reliable film uniformity and device stability remain hard to achieve and often require precise compliance with complicated protocols, which hampers upscaling towards industrial applications. Here, we explore the potential of an alternative route towards high-quality perovskite films: The reaction between a preexisting perovskite film and methylamine (MA) gas has been shown to possess the striking ability to both improve lm morphology and increase grain size drastically, boosting device performance. This promising post-deposition treatment could provide the means to decouple film quality from the initial deposition process, thus promising to facilitate upscaling and lowering production costs. Furthermore, such MA gas treatments show great promise regarding the stability of fabricated devices, as they open up the opportunity to reduce or even eliminate the adverse role of grain boundaries in film degradation.

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530 Physik
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perovskite, solar cell, methylamine, grain boundaries, stability, upscaling
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ISO 690SEEWALD, Tobias, Emilia R. SCHÜTZ, Carola EBENHOCH, Lukas SCHMIDT-MENDE, 2020. Curing perovskites : A way towards control of crystallinity and improved stability. In: Journal of Physics : Energy. Institute of Physics (IOP). 2020, 2(2), 021001. eISSN 2515-7655. Available under: doi: 10.1088/2515-7655/ab604b
BibTex
@article{Seewald2020-04-01Curin-48114,
  year={2020},
  doi={10.1088/2515-7655/ab604b},
  title={Curing perovskites : A way towards control of crystallinity and improved stability},
  number={2},
  volume={2},
  journal={Journal of Physics : Energy},
  author={Seewald, Tobias and Schütz, Emilia R. and Ebenhoch, Carola and Schmidt-Mende, Lukas},
  note={Article Number: 021001}
}
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