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Multilayered Perovskite Materials Based on Polymeric-Ammonium Cations for Stable Large-Area Solar Cell

Yao, Kai, Wang, Xiaofeng, Xu, Yun-xiang, Li, Fan, Zhou, Lang·2016·Chemistry of Materials

Abstract

Despite the dramatic rise in power conversion efficiencies (PCEs) of perovskite solar cells (PeSCs), concerns surrounding the long-term stability as well as the poor reproducibility in the archetypal three-dimensional (3D) perovskite, MAPbI 3 (MA = CH 3 NH 3 ), have the potential to derail commercialization. We have reported the fabrication and properties of a series of 2D perovskite compounds (PEI) 2 (MA) n −1 Pb n I 3 n +1 ( n = 3, 5, 7) by incorporating polyethylenimine (PEI) cations within the layered structure. The benefits of using intercalated polymer cations in the multilayered films are multiple: moisture resistance and film quality are greatly enhanced compared to that of their 3D MAPbI 3 analogue; charge transport within solar cells can also be improved compared to that of 2D materials using small-molecule bulky ammonium. The moisture-stable nature of the multilayered perovskite materials allow for the simple one-step fabrication of cells with an aperture area of 2.32 cm 2 under ambient humidity that have a PCE up to 8.77%. Overall, the 2D perovskite family offers rich multitudes of substituent and crystal structures, defining a promising class of stable and efficient light-absorbing materials.

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Metadata

Authors
Yao, K., Wang, X., Xu, Y.-X., Li, F., & Zhou, L.
Venue
Chemistry of Materials
Published
2016-04-22
Volume
28
Issue
9
Pages
3131-3138
ISSN
  • 0897-4756 (ISSN-L)
  • 1520-5002
OpenAlex
W2340602524
Cited by
199
References
1
FWCI
16.77
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Multilayered Perovskite Materials Based on Polymeric-Ammonium Cations for Stable Large-Area Solar Cell. https://app.cochat.ai/papers/10.1021/acs.chemmater.6b00711
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Yao, K., Wang, X., Xu, Y.-X., Li, F., & Zhou, L. (2016). Multilayered Perovskite Materials Based on Polymeric-Ammonium Cations for Stable Large-Area Solar Cell. Chemistry of Materials. https://doi.org/10.1021/acs.chemmater.6b00711

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