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Influence of Chloride/Iodide Ratio in MAPbI 3-x Cl x Perovskite Solar Devices: Case of Low Temperature Processable AZO Sub-Layer

Author

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  • Manon Spalla

    (Department LEPMI/GUIDE, Université Grenoble Alpes, Université Savoie Mont Blanc, CNRS, Grenoble INP, LEPMI, 38000 Grenoble, France
    Department CEA/LITEN/INES, Université Grenoble Alpes, CEA, 73375 Le Bourget du Lac, France)

  • Lara Perrin

    (Department LEPMI/GUIDE, Université Grenoble Alpes, Université Savoie Mont Blanc, CNRS, Grenoble INP, LEPMI, 38000 Grenoble, France)

  • Emilie Planès

    (Department LEPMI/GUIDE, Université Grenoble Alpes, Université Savoie Mont Blanc, CNRS, Grenoble INP, LEPMI, 38000 Grenoble, France)

  • Muriel Matheron

    (Department CEA/LITEN/INES, Université Grenoble Alpes, CEA, 73375 Le Bourget du Lac, France)

  • Solenn Berson

    (Department CEA/LITEN/INES, Université Grenoble Alpes, CEA, 73375 Le Bourget du Lac, France)

  • Lionel Flandin

    (Department LEPMI/GUIDE, Université Grenoble Alpes, Université Savoie Mont Blanc, CNRS, Grenoble INP, LEPMI, 38000 Grenoble, France)

Abstract

A significant current challenge for perovskite solar technology is succeeding in designing devices all by low temperature processes. This could help for both rigid devices industrialisation and flexible devices development. The depositions of nanoparticles from colloidal suspensions consequently emerge as attractive approaches, especially due to their potential for low temperature curing not only for the photoactive perovskite layer but also for charge transporting layers. Here, NIP solar cells based on aluminium doped zinc oxide (AZO) electron transport layer were fabricated using a low temperature compatible process for AZO deposition. For the extensively studied perovskites based on methylammonium lead halides (MAPbI 3-x Cl x ), the chloride/iodide equation is widely proposed to follow an optimal value corresponding to an introduced MAI:PbCl 2 ratio of 3:1. However, the perovskite formulation should be considered as a key parameter for the optimization of power conversion efficiency when exploring new perovskite sub-layers. We here propose a systematic method for the structural determination of the optimal ratio. It may depend on the sublayer and results from structural changes around the optimal value. The functional properties gradually increase with the addition of chlorine as long as it remains intercalated in a single phase. Above the optimal ratio, the appearance of two phases degrades the system.

Suggested Citation

  • Manon Spalla & Lara Perrin & Emilie Planès & Muriel Matheron & Solenn Berson & Lionel Flandin, 2020. "Influence of Chloride/Iodide Ratio in MAPbI 3-x Cl x Perovskite Solar Devices: Case of Low Temperature Processable AZO Sub-Layer," Energies, MDPI, vol. 13(8), pages 1-20, April.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:8:p:1927-:d:345459
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    References listed on IDEAS

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    1. Takeo Oku, 2015. "Crystal Structures of CH3NH3PbI3 and Related Perovskite Compounds Used for Solar Cells," Chapters, in: Leonid A. Kosyachenko (ed.), Solar Cells - New Approaches and Reviews, IntechOpen.
    2. Kevin H. Stone & Aryeh Gold-Parker & Vanessa L. Pool & Eva L. Unger & Andrea R. Bowring & Michael D. McGehee & Michael F. Toney & Christopher J. Tassone, 2018. "Transformation from crystalline precursor to perovskite in PbCl2-derived MAPbI3," Nature Communications, Nature, vol. 9(1), pages 1-7, December.
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    1. Thibault Lemercier & Lara Perrin & Emilie Planès & Solenn Berson & Lionel Flandin, 2020. "A Comparison of the Structure and Properties of Opaque and Semi-Transparent NIP/PIN-Type Scalable Perovskite Solar Cells," Energies, MDPI, vol. 13(15), pages 1-18, July.

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