Planar heterojunction type perovskite solar cells based on TiOx compact layer fabricated by chemical bath deposition

Tetsuya Taima; Md. Shahiduzzaman; Kouhei Yamamoto; Yoshikazu Furumoto; Takayuki Kuwabara; Kohshin Takahashi

doi:10.1117/12.2217737

27 February 2016 Planar heterojunction type perovskite solar cells based on TiO_x compact layer fabricated by chemical bath deposition

Tetsuya Taima, Md. Shahiduzzaman, Kouhei Yamamoto, Yoshikazu Furumoto, Takayuki Kuwabara, Kohshin Takahashi

Author Affiliations +

Proceedings Volume 9749, Oxide-based Materials and Devices VII; 97491G (2016) https://doi.org/10.1117/12.2217737
Event: SPIE OPTO, 2016, San Francisco, California, United States

Abstract

Perovskite (CH₃NH₃PbI₃) solar cell (PSC) have been recently emerged as a promising cost and energy efficient light absorber material for photovoltaic applications. In this paper, we fabricated planar heterojunction (PHJ) perovskite solar cells using chemical bath deposited low temperature titanium oxide (TiO_x) compact layer as an electron collection layer. The devices modified by fullerene (C₆₀) with the thickness of 7nm show very significant improvement in photovoltaic performances compared to without modified devices leading to efficiencies as high as 9.0%. This is due to enhanced electrons more efficiently at the CH₃NH₃PbI₃ /compact-TiO_x interface from the C₆₀ leading to improved photocurrent densities and fill factors.

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Tetsuya Taima, Md. Shahiduzzaman, Kouhei Yamamoto, Yoshikazu Furumoto, Takayuki Kuwabara, and Kohshin Takahashi "Planar heterojunction type perovskite solar cells based on TiO_x compact layer fabricated by chemical bath deposition", Proc. SPIE 9749, Oxide-based Materials and Devices VII, 97491G (27 February 2016); https://doi.org/10.1117/12.2217737

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