Ionic Liquid-Assisted MAPbI3 Nanoparticle-Seeded Growth for Efficient and Stable Perovskite Solar Cells

Md Shahiduzzaman; LiangLe Wang; Shoko Fukaya; Ersan Y Muslih; Atsushi Kogo; Masahiro Nakano; Makoto Karakawa; Kohshin Takahashi; Koji Tomita; Jean-Michel Nunzi; Tsutomu Miyasaka; Tetsuya Taima

doi:10.1021/acsami.1c00677

Ionic Liquid-Assisted MAPbI₃ Nanoparticle-Seeded Growth for Efficient and Stable Perovskite Solar Cells

ACS Appl Mater Interfaces. 2021 May 12;13(18):21194-21206. doi: 10.1021/acsami.1c00677. Epub 2021 Apr 29.

Authors

Md Shahiduzzaman¹, LiangLe Wang², Shoko Fukaya², Ersan Y Muslih³, Atsushi Kogo⁴, Masahiro Nakano³, Makoto Karakawa^{1

2

3}, Kohshin Takahashi³, Koji Tomita⁵, Jean-Michel Nunzi^{1

6}, Tsutomu Miyasaka⁷, Tetsuya Taima^{1

2

3}

Affiliations

¹ Nanomaterials Research Institute, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan.
² Graduate School of Frontier Science Initiative, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan.
³ Graduate School of Natural Science and Technology, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan.
⁴ National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan.
⁵ Department of Chemistry, School of Science, Tokai University, Hiratsuka, Kanagawa 259-1292, Japan.
⁶ Department of Physics, Engineering Physics and Astronomy, Queens University, Kingston, Ontario K7L 3N6, Canada.
⁷ Graduate School of Engineering, Toin University of Yokohama, Kuroganecho, Yokohama 225-8503, Japan.

PMID: 33914507
DOI: 10.1021/acsami.1c00677

Abstract

With the rapid improvement of perovskite solar cells (PSCs), long-life operational stability has become a major requirement for their commercialization. In this work, we devised a pristine cesium-formamidinium-methylammonium (termed as CsFAMA) triple-cation-based perovskite precursor solution into the ionic liquid (IL)-assisted MAPbI₃ nanoparticles (NPs) through a seeded growth approach in which the host IL-assisted MAPbI₃ NPs remarkably promote high-quality perovskite films with large single-crystal domains, enhancing the device performance and stability. The power conversion efficiency (PCE) of the MAPbI₃ NP-seeded growth of MAPbI₃ NPs/CsFAMA-based PSCs is as high as 19.44%, which is superior to those of MAPbI₃ NPs and pristine CsFAMA films as the photoactive layer (9.52 and 17.33%, respectively). The long-term light-soaking and moisture stability of IL-aided MAPbI₃ NPs/CsFAMA-based devices (non-encapsulated) remain above 90 and 80%, respectively, of their initial output after 2 h of light illumination (1 sun) and 6000 h storage at ambient with a relative humidity range of 30-40%. The use of the IL-assisted MAPbI₃ NP-seeded growth for PSCs is a significant step toward developing stable and reliable perovskite photovoltaic devices.

Keywords: dense perovskite; ionic liquid-assisted MAPbI3 nanoparticle-seeded growth; perovskite solar cells; stability.