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Efficient ambient-air-stable solar cells with 2D–3D heterostructured butylammonium-caesium-formamidinium lead halide perovskites

Author

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  • Zhiping Wang

    (Clarendon Laboratory, University of Oxford)

  • Qianqian Lin

    (Clarendon Laboratory, University of Oxford)

  • Francis P. Chmiel

    (Clarendon Laboratory, University of Oxford)

  • Nobuya Sakai

    (Clarendon Laboratory, University of Oxford)

  • Laura M. Herz

    (Clarendon Laboratory, University of Oxford)

  • Henry J. Snaith

    (Clarendon Laboratory, University of Oxford)

Abstract

Perovskite solar cells are remarkably efficient; however, they are prone to degradation in water, oxygen and ultraviolet light. Cation engineering in 3D perovskite absorbers has led to reduced degradation. Alternatively, 2D Ruddlesden–Popper layered perovskites exhibit improved stability, but have not delivered efficient solar cells so far. Here, we introduce n-butylammonium cations into a mixed-cation lead mixed-halide FA0.83Cs0.17Pb(IyBr1−y)3 3D perovskite. We observe the formation of 2D perovskite platelets, interspersed between highly orientated 3D perovskite grains, which suppress non-radiative charge recombination. We investigate the relationship between thin-film composition, crystal alignment and device performance. Solar cells with an optimal butylammonium content exhibit average stabilized power conversion efficiency of 17.5 ± 1.3% with a 1.61-eV-bandgap perovskite and 15.8 ± 0.8% with a 1.72-eV-bandgap perovskite. The stability under simulated sunlight is also enhanced. Cells sustain 80% of their ‘post burn-in’ efficiency after 1,000 h in air, and close to 4,000 h when encapsulated.

Suggested Citation

  • Zhiping Wang & Qianqian Lin & Francis P. Chmiel & Nobuya Sakai & Laura M. Herz & Henry J. Snaith, 2017. "Efficient ambient-air-stable solar cells with 2D–3D heterostructured butylammonium-caesium-formamidinium lead halide perovskites," Nature Energy, Nature, vol. 2(9), pages 1-10, September.
    • Handle: RePEc:nat:natene:v:2:y:2017:i:9:d:10.1038_nenergy.2017.135
    DOI: 10.1038/nenergy.2017.135
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    Cited by:

    1. Shaochuan Hou & Siheng Wu & Xiaoyan Li & Jiahao Yan & Jie Xing & Hao Liu & Huiying Hao & Jingjing Dong & Haochong Huang, 2022. "Efficient CsPbBr 3 Perovskite Solar Cells with Storage Stability > 340 Days," Energies, MDPI, vol. 15(20), pages 1-9, October.
    2. Jin Zhou & Shiqiang Fu & Shun Zhou & Lishuai Huang & Cheng Wang & Hongling Guan & Dexin Pu & Hongsen Cui & Chen Wang & Ti Wang & Weiwei Meng & Guojia Fang & Weijun Ke, 2024. "Mixed tin-lead perovskites with balanced crystallization and oxidation barrier for all-perovskite tandem solar cells," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    3. Ali, Nasir & Rauf, Sajid & Kong, Weiguang & Ali, Shahid & Wang, Xiaoyu & Khesro, Amir & Yang, Chang Ping & Zhu, Bin & Wu, Huizhen, 2019. "An overview of the decompositions in organo-metal halide perovskites and shielding with 2-dimensional perovskites," Renewable and Sustainable Energy Reviews, Elsevier, vol. 109(C), pages 160-186.
    4. Dejian Yu & Fei Cao & Jinfeng Liao & Bingzhe Wang & Chenliang Su & Guichuan Xing, 2022. "Direct observation of photoinduced carrier blocking in mixed-dimensional 2D/3D perovskites and the origin," Nature Communications, Nature, vol. 13(1), pages 1-11, December.
    5. Yujie Luo & Kaikai Liu & Liu Yang & Wenjing Feng & Lingfang Zheng & Lina Shen & Yongbin Jin & Zheng Fang & Peiquan Song & Wanjia Tian & Peng Xu & Yuqing Li & Chengbo Tian & Liqiang Xie & Zhanhua Wei, 2023. "Dissolved-Cl2 triggered redox reaction enables high-performance perovskite solar cells," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    6. Nieto-Díaz, Balder A. & Crossland, Andrew F. & Groves, Christopher, 2021. "A levelized cost of energy approach to select and optimise emerging PV technologies: The relative impact of degradation, cost and initial efficiency," Applied Energy, Elsevier, vol. 299(C).

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