J. Semicond. > 2021, Volume 42?>?Issue 8?> 080201

RESEARCH HIGHLIGHTS

Ionic liquids in perovskite solar cells

Wensi Cai1, Zhigang Zang1, and Liming Ding2,

+ Author Affiliations

 Corresponding author: Zhigang Zang, zangzg@cqu.edu.cn; Liming Ding, ding@nanoctr.cn

DOI: 10.1088/1674-4926/42/8/080201

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[1]
Min H, Kim M, Lee S U, et al. Efficient, stable solar cells by using inherent bandgap of alpha-phase formamidinium lead iodide. Science, 2019, 366, 749 doi: 10.1126/science.aay7044
[2]
Zhao X F, Tan Z K. Large-area near-infrared perovskite light-emitting diodes. Nat Photonics, 2020, 14, 215 doi: 10.1038/s41566-019-0559-3
[3]
Jeong M, Choi I W, Go E M, et al. Stable perovskite solar cells with efficiency exceeding 24.8% and 0.3-V voltage loss. Science, 2020, 369, 1615 doi: 10.1126/science.abb7167
[4]
Yoo J J, Seo G, Chua M R, et al. Efficient perovskite solar cells via improved carrier management. Nature, 2021, 590, 587 doi: 10.1038/s41586-021-03285-w
[5]
Kim G, Min H, Lee K S, et al. Impact of strain relaxation on performance of α-formamidinium lead iodide perovskite solar cells. Science, 2020, 370, 108 doi: 10.1126/science.abc4417
[6]
Niu T, Chao L, Gao W, et al. Ionic liquids-enabled efficient and stable perovskite photovoltaics: progress and challenges. ACS Energy Lett, 2021, 1453 doi: 10.1021/acsenergylett.0c02696
[7]
Ghosh S, Singh T. Role of ionic liquids in organic-inorganic metal halide perovskite solar cells efficiency and stability. Nano Energy, 2019, 63, 103828 doi: 10.1016/j.nanoen.2019.06.024
[8]
Zhou X, Hu M, Liu C, et al. Synergistic effects of multiple functional ionic liquid-treated PEDOT: PSS and less-ion-defects S-acetylthiocholine chloride-passivated perovskite surface enabling stable and hysteresis-free inverted perovskite solar cells with conversion efficiency over 20%. Nano Energy, 2019, 63, 103866 doi: 10.1016/j.nanoen.2019.103866
[9]
Noel N K, Habisreutinger S N, Wenger B, et al. Elucidating the role of a tetrafluoroborate-based ionic liquid at the n-type oxide/perovskite interface. Adv Energy Mater, 2020, 10, 1903231 doi: 10.1002/aenm.201903231
[10]
Xia Y, Ran C, Chen Y, et al. Management of perovskite intermediates for highly efficient inverted planar heterojunction perovskite solar cells. J Mater Chem A, 2017, 5, 3193 doi: 10.1039/C6TA09554B
[11]
Liu L, Tang Z, Xin C, et al. Acetate anion assisted crystal orientation reconstruction in organic–inorganic lead halide perovskite. ACS Appl Energy Mater, 2018, 1, 2730 doi: 10.1021/acsaem.8b00400
[12]
Akin S, Akman E, Sonmezoglu S. FAPbI3-based perovskite solar cells employing hexyl-based ionic liquid with an efficiency over 20% and excellent long-term stability. Adv Funct Mater, 2020, 30, 2002964 doi: 10.1002/adfm.202002964
[13]
Bai S, Da P, Li C, et al. Planar perovskite solar cells with long-term stability using ionic liquid additives. Nature, 2019, 571, 245 doi: 10.1038/s41586-019-1357-2
[14]
Xia R, Gao X X, Zhang Y, et al. An efficient approach to fabricate air-stable perovskite solar cells via addition of a self-polymerizing ionic liquid. Adv Mater, 2020, 32, 2003801 doi: 10.1002/adma.202003801
[15]
Hui W, Chao L, Lu H, et al. Stabilizing black-phase formamidinium perovskite formation at room temperature and high humidity. Science, 2021, 371, 1359 doi: 10.1126/science.abf7652
Fig. 1.  (Color online) SEM micrographs for FAPbI3 films (a) without and (b) with HMII. (c) Stability curves for the devices aged under ambient conditions (25 °C, 60 ± 10% RH). Reproduced with permission[12], Copyright 2021, Wiley-VCH. (d) The structure for a p–i–n solar cell. (e) ToF-SIMS depth profiles for BMIM-BF4-containing perovskite film on an NiO/FTO glass substrate. Reproduced with permission[13], Copyright 2021, Nature. (f) [bvbim]Cl (top) and the PSC (bottom). (g) Device stability study. The cells were stored in air (50% RH, room temperature). Reproduced with permission[14], Copyright 2021, Wiley-VCH. (h) J–V curves for champion cells based on FAPbI3@MAFa and FAPbI3@DMF:DMSO films. (i) Thermal stability comparison between two unencapsulated devices under continuous heating at 85 °C in a N2 glovebox. Reproduced with permission[15], Copyright 2021, Science.

[1]
Min H, Kim M, Lee S U, et al. Efficient, stable solar cells by using inherent bandgap of alpha-phase formamidinium lead iodide. Science, 2019, 366, 749 doi: 10.1126/science.aay7044
[2]
Zhao X F, Tan Z K. Large-area near-infrared perovskite light-emitting diodes. Nat Photonics, 2020, 14, 215 doi: 10.1038/s41566-019-0559-3
[3]
Jeong M, Choi I W, Go E M, et al. Stable perovskite solar cells with efficiency exceeding 24.8% and 0.3-V voltage loss. Science, 2020, 369, 1615 doi: 10.1126/science.abb7167
[4]
Yoo J J, Seo G, Chua M R, et al. Efficient perovskite solar cells via improved carrier management. Nature, 2021, 590, 587 doi: 10.1038/s41586-021-03285-w
[5]
Kim G, Min H, Lee K S, et al. Impact of strain relaxation on performance of α-formamidinium lead iodide perovskite solar cells. Science, 2020, 370, 108 doi: 10.1126/science.abc4417
[6]
Niu T, Chao L, Gao W, et al. Ionic liquids-enabled efficient and stable perovskite photovoltaics: progress and challenges. ACS Energy Lett, 2021, 1453 doi: 10.1021/acsenergylett.0c02696
[7]
Ghosh S, Singh T. Role of ionic liquids in organic-inorganic metal halide perovskite solar cells efficiency and stability. Nano Energy, 2019, 63, 103828 doi: 10.1016/j.nanoen.2019.06.024
[8]
Zhou X, Hu M, Liu C, et al. Synergistic effects of multiple functional ionic liquid-treated PEDOT: PSS and less-ion-defects S-acetylthiocholine chloride-passivated perovskite surface enabling stable and hysteresis-free inverted perovskite solar cells with conversion efficiency over 20%. Nano Energy, 2019, 63, 103866 doi: 10.1016/j.nanoen.2019.103866
[9]
Noel N K, Habisreutinger S N, Wenger B, et al. Elucidating the role of a tetrafluoroborate-based ionic liquid at the n-type oxide/perovskite interface. Adv Energy Mater, 2020, 10, 1903231 doi: 10.1002/aenm.201903231
[10]
Xia Y, Ran C, Chen Y, et al. Management of perovskite intermediates for highly efficient inverted planar heterojunction perovskite solar cells. J Mater Chem A, 2017, 5, 3193 doi: 10.1039/C6TA09554B
[11]
Liu L, Tang Z, Xin C, et al. Acetate anion assisted crystal orientation reconstruction in organic–inorganic lead halide perovskite. ACS Appl Energy Mater, 2018, 1, 2730 doi: 10.1021/acsaem.8b00400
[12]
Akin S, Akman E, Sonmezoglu S. FAPbI3-based perovskite solar cells employing hexyl-based ionic liquid with an efficiency over 20% and excellent long-term stability. Adv Funct Mater, 2020, 30, 2002964 doi: 10.1002/adfm.202002964
[13]
Bai S, Da P, Li C, et al. Planar perovskite solar cells with long-term stability using ionic liquid additives. Nature, 2019, 571, 245 doi: 10.1038/s41586-019-1357-2
[14]
Xia R, Gao X X, Zhang Y, et al. An efficient approach to fabricate air-stable perovskite solar cells via addition of a self-polymerizing ionic liquid. Adv Mater, 2020, 32, 2003801 doi: 10.1002/adma.202003801
[15]
Hui W, Chao L, Lu H, et al. Stabilizing black-phase formamidinium perovskite formation at room temperature and high humidity. Science, 2021, 371, 1359 doi: 10.1126/science.abf7652

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    Received: 02 May 2021 Revised: Online: Accepted Manuscript: 07 May 2021Uncorrected proof: 08 May 2021Published: 01 August 2021

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      Wensi Cai, Zhigang Zang, Liming Ding. Ionic liquids in perovskite solar cells[J]. Journal of Semiconductors, 2021, 42(8): 080201. doi: 10.1088/1674-4926/42/8/080201 ****W S Cai, Z G Zang, L M Ding, Ionic liquids in perovskite solar cells[J]. J. Semicond., 2021, 42(8): 080201. doi: 10.1088/1674-4926/42/8/080201.
      Citation:
      Wensi Cai, Zhigang Zang, Liming Ding. Ionic liquids in perovskite solar cells[J]. Journal of Semiconductors, 2021, 42(8): 080201. doi: 10.1088/1674-4926/42/8/080201 ****
      W S Cai, Z G Zang, L M Ding, Ionic liquids in perovskite solar cells[J]. J. Semicond., 2021, 42(8): 080201. doi: 10.1088/1674-4926/42/8/080201.

      Ionic liquids in perovskite solar cells

      DOI: 10.1088/1674-4926/42/8/080201
      • 1.

        Key Laboratory of Optoelectronic Technology & Systems (MoE), Chongqing University, Chongqing 400044, China

      • 2.

        Center for Excellence in Nanoscience (CAS), Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS), National Center for Nanoscience and Technology, Beijing 100190, China

      More Information
      • Wensi Cai：received her PhD degree from University of Manchester in 2019. She joined Chongqing University as a postdoc in 2020. Her research focuses on oxide semiconductor- and perovskite-based electronic devices
      • Zhigang Zang：received his PhD degree from Kyushu University in 2011. He joined School of Optoelectronic Engineering, Chongqing University as a professor in 2014. His research focuses on the synthesis of II–VI, III–V semiconductor materials and their applications in solar cells, photodetectors and LEDs
      • Liming Ding：got his PhD from University of Science and Technology of China (was a joint student at Changchun Institute of Applied Chemistry, CAS). He started his research on OSCs and PLEDs in Olle Ingan?s Lab in 1998. Later on, he worked at National Center for Polymer Research, Wright-Patterson Air Force Base and Argonne National Lab (USA). He joined Konarka as a Senior Scientist in 2008. In 2010, he joined National Center for Nanoscience and Technology as a full professor. His research focuses on innovative materials and devices. He is RSC Fellow, the nominator for Xplorer Prize, and the Associate Editors for Science Bulletin and Journal of Semiconductors
      • Corresponding author: zangzg@cqu.edu.cn; ding@nanoctr.cn
      • Received Date: 2021-05-02
      • Published Date: 2021-08-10

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