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Solution-processed intermediate-band solar cells with lead sulfide quantum dots and lead halide perovskites

Author

Listed:
  • Hiroji Hosokawa

    (Kao Corporation)

  • Ryo Tamaki

    (The University of Tokyo)

  • Takuya Sawada

    (Kao Corporation)

  • Akinori Okonogi

    (Kao Corporation)

  • Haruyuki Sato

    (Kao Corporation)

  • Yuhei Ogomi

    (Kyushu Institute of Technology)

  • Shuzi Hayase

    (Kyushu Institute of Technology)

  • Yoshitaka Okada

    (The University of Tokyo)

  • Toshihiro Yano

    (Kao Corporation)

Abstract

The intermediate-band solar cell (IBSC) with quantum dots and a bulk semiconductor matrix has potential for high power conversion efficiency, exceeding the Shockley-Queisser limit. However, the IBSCs reported to date have been fabricated only by dry process and their efficiencies are limited, because their photo-absorption layers have low particle density of quantum dots, defects due to lattice strain, and low bandgap energy of bulk semiconductors. Here we present solution-processed IBSCs containing photo-absorption layers where lead sulfide quantum dots are densely dispersed in methylammonium lead bromide perovskite matrices with a high bandgap energy of 2.3 eV under undistorted conditions. We confirm that the present IBSCs exhibit two-step photon absorption via intermediate-band at room temperature by inter-subband photocurrent spectroscopy.

Suggested Citation

  • Hiroji Hosokawa & Ryo Tamaki & Takuya Sawada & Akinori Okonogi & Haruyuki Sato & Yuhei Ogomi & Shuzi Hayase & Yoshitaka Okada & Toshihiro Yano, 2019. "Solution-processed intermediate-band solar cells with lead sulfide quantum dots and lead halide perovskites," Nature Communications, Nature, vol. 10(1), pages 1-8, December.
  • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-018-07655-3
    DOI: 10.1038/s41467-018-07655-3
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    Cited by:

    1. Francisca Werlinger & Camilo Segura & Javier Martínez & Igor Osorio-Roman & Danilo Jara & Seog Joon Yoon & Andrés Fabián Gualdrón-Reyes, 2023. "Current Progress of Efficient Active Layers for Organic, Chalcogenide and Perovskite-Based Solar Cells: A Perspective," Energies, MDPI, vol. 16(16), pages 1-35, August.

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