Development for Highly Efficient Organometal Halide Perovskite Solar Cells and Modules

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  • SEGAWA Hiroshi
    Graduate School of Arts and Sciences, The University of Tokyo Research Center for Advanced Science and Technology, The University of Tokyo
  • NAKAZAKI Jotaro
    Research Center for Advanced Science and Technology, The University of Tokyo
  • TADA Keishi
    Graduate School of Arts and Sciences, The University of Tokyo
  • BESSHO Takeru
    Research Center for Advanced Science and Technology, The University of Tokyo

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  • 有機金属ハライドペロブスカイト太陽電池セル・モジュールの高効率化に向けた開発
  • ユウキ キンゾク ハライドペロブスカイト タイヨウ デンチ セル ・ モジュール ノ コウコウリツカ ニ ムケタ カイハツ

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Abstract

<p>Organometal halide perovskites have captured wide interest as a promising material for light-weight and high-efficiency solar cells. Through recent studies of the organometal halide perovskite solar cells (PSCs), the composition of organometal halide perovskites is recognized as one of the key factors in the improvement of the PCE. In this study, we investigated mixed cation perovskite absorber. Additionally, we successfully constructed monolithic PSC mini-module without I-V hysteresis. In the case of MA-free PSCs, the 24.9% PCE (0.187 cm2) and 21.6% PCE (2.76 cm2 monolithic PSC mini-module) were obtained, respectively. We also developed semitransparent perovskite top cells with higher durability and transmittance for tandem solar cells. The PCEs of 19.5% (certified 19.3%) and 26.2% were achieved for a 1 cm2 semi-transparent perovskite top cell and four-terminal PSC/CIGS tandem solar cells, respectively.</p>

Journal

  • Vacuum and Surface Science

    Vacuum and Surface Science 66 (2), 103-108, 2023-02-10

    The Japan Society of Vacuum and Surface Science

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