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Additive Engineering for Efficient and Stable Perovskite Solar Cells

Open access
Zhang, Fei, Zhu, Kai·2020·Advanced Energy Materials

Abstract

Perovskite solar cells (PSCs) have reached a certified 25.2% efficiency in 2019 due to their high absorption coefficient, high carrier mobility, long diffusion length, and tunable direct bandgap. However, due to the nature of solution processing and rapid crystal growth of perovskite thin films, a variety of defects can form as a result of the precursor compositions and processing conditions. The use of additives can affect perovskite crystallization and film formation, defect passivation in the bulk and/or at the surface, as well as influence the interface tuning of structure and energetics. Here, recent progress in additive engineering during perovskite film formation is discussed according to the following common categories: Lewis acid (e.g., metal cations, fullerene derivatives), Lewis base based on the donor type (e.g., O‐donor, S‐donor, and N‐donor), ammonium salts, low‐dimensional perovskites, and ionic liquid. Various additive‐assisted strategies for interface optimization are then summarized; additives include modifiers to improve electron‐ and hole‐transport layers as well as those to modify perovskite surface properties. Finally, an outlook is provided on research trends with respect to additive engineering in PSC development.

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Metadata

Authors
Zhang, F., & Zhu, K.
Venue
Advanced Energy Materials
Publisher
Wiley
Published
2019-10-04
Volume
10
Issue
13
ISSN
  • 1614-6832 (ISSN-L)
  • 1614-6840
OpenAlex
W2977917184
Cited by
805
References
4
FWCI
32.34
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Additive Engineering for Efficient and Stable Perovskite Solar Cells. https://app.cochat.ai/papers/10.1002/aenm.201902579
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Zhang, F., & Zhu, K. (2020). Additive Engineering for Efficient and Stable Perovskite Solar Cells. Advanced Energy Materials. https://doi.org/10.1002/aenm.201902579

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