Sponsorship of the 2025 World Exposition and Installation of Film-type Perovskite Solar Cells

  SEKISUI CHEMICAL CO., LTD. (President: Keita Kato; hereinafter “SEKISUI CHEMICAL”) announces that it will sponsor the “Green Expo ” of the Future Society Showcase Project of the 2025 World Exposition in Japan (hereinafter “Expo 2025 Osaka, Kansai, Japan”) and to provide the film-type perovskite solar cells that SEKISUI CHEMICAL is currently developing. The film-type perovskite solar cells will be installed at the bus shelter of the West Gate Transportation Terminal, and they will be used to power LED lighting at night.

film-type perovskite solar cells
Conceptual image of the installation

  • film-type perovskite solar cells
    Installed in a bus shelter (approximately 250 m)
  • film-type perovskite solar cells
    Electricity is stored in storage batteries and used to turn on LED lights at night

  SEKISUI CHEMICAL Group set its vision statement as “Innovation for the Earth” in Vision 2030, our long-term vision. We announced that we support the basis of LIFE and will continue to create “peace of mind for the future” in order to realize a sustainable society.
  SEKISUI CHEMICAL agrees with the theme of Expo 2025 Osaka, Kansai Japan, “Designing Future Society for Our Lives,” and the concept of “People’s Living Lab -A laboratory for a future society”. Under the Future Society Showcase Project, advanced technologies and systems owned by companies and organizations will be demonstrated and implemented at the venue. We thought that it would be an important opportunity to demonstrate and implement the film-type perovskite solar cell currently being developed and propose its contribution to carbon neutrality.

  We are also considering and discussing providing the film-type perovskite solar cells to other pavilion exhibitors at Expo 2025 Osaka, Kansai, Japan. We will contribute to the realization of a sustainable society by proposing new forms of electricity generation and working toward their implementation in society.

Future Society Showcase Project Exhibition
At a press conference sponsored by the Future Society Showcase Project Exhibition

Future Society Showcase Project Exhibition
Provided by Japan Association for the 2025 World Exposition

(Reference 1) Overview and future development of the film-type perovskite solar cells

   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 West Japan Railway Company, Tokyo Metropolitan Government, NTT DATA Corporation, and JERA Co., Ltd., aiming for commercialization in 2025.

perovskite solar cells

(Reference 2) Press releases related to the perovskite solar cells

■Film-type Perovskite Solar Cells Installed in Umekita (Osaka) Station (Announced on August 3, 2022)

■Commencement of Joint Research on Film-type Perovskite Solar Cells with the Tokyo Metropolitan Government (Announced on December 2, 2022)

■Commencement of Japan’s First Demonstration Test of Perovskite Solar Cells Installed on Exterior Walls of Buildings (Announced on February 13, 2023)

■Commencement of Joint Demonstration Test of Perovskite Solar Cells with JERA (Announced on March 27, 2023)

■Exhibition of Film-type Perovskite Solar Cells at the G7 Hiroshima Summit 2023 (Announced on June 6, 2023)


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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       Email: kouhou@sekisui.com


This press release may contain forward-looking statements. Such forward-looking statements are based on current expectations and beliefs and are subject to a number of factors and uncertainties that could cause actual results to differ materially from those expressed or implied by such statements due to changes in global economic, business, competitive market and regulatory factors.