Discussion with State Minister Ota on the Development of Film-type Perovskite Solar Cells

  SEKISUI CHEMICAL CO., LTD. (President: Keita Kato; hereinafter “SEKISUI CHEMICAL”) received a visit at one of its development centers on September 11 by State Minister of Economy, Trade and Industry Fusae Ota to exchange opinions on the film-type perovskite solar cells being developed by SEKISUI CHEMICAL.

  Following an overview of the solar cells, State Minister Ota toured the manufacturing facilities and exhibition space, and deepened her knowledge of SEKISUI CHEMICAL’s technologies. Joined by Katsunori Mukai, head of the SEKISUI CHEMICAL R&D Center, the next hour was spent exchanging opinions on the development of film-type perovskite solar cells.

  State Minister Ota spoke of her expectations for the technology, “The Ministry of Economy, Trade and Industry will provide solid support so that Japan can lead the way in technology that originates in Japan.”

  • Perovskite Solar Cell
    Inspecting the manufacturing facilities
  • Perovskite Solar Cell
    State Minister Ota (right); Katsunori Mukai, Executive Officer and Head of R&D Center (center)
    Takeharu Morita, Head of Perovskite Solar Cell Group (left)

  SEKISUI CHEMICAL achieved outdoor durability of 10 years equivalent ahead of the rest of the industry through an original “sealing, film formation, materials and process technology,” creating a 30 cm-wide roll-to-roll manufacturing process. This manufacturing process has been successfully used to produce film-type perovskite solar cells with power generation efficiency of 15.0%.

  Currently, SEKISUI CHEMICAL is aiming for practical application with the establishment of a manufacturing process for 1 m-wide rolls and the further improvement of durability and power generation efficiency, and is accelerating development leveraging the Green Innovation Fund of the New Energy and Industrial Technology Development Organization (NEDO). In addition, for early implementation in society, we are conducting development in cooperation with various related parties such as the Tokyo Metropolitan Government, West Japan Railway Company, NTT DATA Corporation, and JERA Co., Ltd., aiming for commercialization in 2025.


Headquartered in Japan, SEKISUI CHEMICAL CO., LTD. (TSE: 4204) and its subsidiaries make up the SEKISUI CHEMICAL Group. 26,000 employees in over 180 companies throughout 21 countries and regions aim to contribute to improving the lives of the people of the world and the earth’s environment. Thanks to a history of innovation, dedication and a pioneering spirit, SEKISUI CHEMICAL now holds leading positions in its three diverse business divisions as well as top global market share in interlayer film, foam products, conductive particles and more.
Since its foundation in 1947, the SEKISUI CHEMICAL Group has dedicated itself to social and environmental contribution and is now an internationally recognized leader in sustainability and environmental initiatives, having recently been selected as one of the Global 100 most sustainable companies. SEKISUI CHEMICAL Group will continue to maintain a strong corporate presence for 100 years and beyond.

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