Japanese Start-Up Develops Breakthrough Solar Film to Challenge China’s Dominance in the Market

Japanese Start-Up Develops Breakthrough Solar Film to Challenge China's Dominance in the Market

Thin-flexible film using perovskite technology could revolutionize the solar panel industry

A Japanese technology start-up is making significant strides in developing a thin-flexible film that has the potential to disrupt China’s stronghold on the global market for solar panels. This breakthrough technology utilizes minerals that form a crystalline structure known as perovskite, which can efficiently convert light into electricity. While previous research on perovskite cells showed limitations in efficiency and vulnerability to moisture, recent advancements have paved the way for the creation of light and flexible solar products that can be wrapped around curved surfaces and generate electricity even in low-light conditions. With the Japanese government’s commitment to making perovskite technology commercially viable within the next two years and significant investments being made by both Japan and the United States, the race to challenge China’s dominance in the solar panel industry is heating up.

The Promise of Perovskite Technology

The potential of perovskite technology lies in its ability to generate electricity using a thin-flexible film, which replaces the traditional use of silicon in solar panels. This innovation allows for greater flexibility and versatility in solar panel design, making it possible to wrap the film around curved surfaces and install solar panels in unconventional locations. Moreover, perovskite cells have shown promise in generating electricity even in low-light conditions, making them suitable for indoor applications as well. These advantages position perovskite technology as a game-changer in the solar industry.

Japanese Government’s Commitment

Recognizing the potential of perovskite technology, Japanese Prime Minister Fumio Kishida has pledged to make it commercially viable within the next two years. To support this goal, the Japanese government has allocated over $400 million to assist companies in scaling up production. This commitment demonstrates Japan’s determination to regain its position as a global leader in the solar panel industry.

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EneCoat Technologies’ Breakthrough

EneCoat Technologies, a start-up co-founded by a University of Kyoto professor, is at the forefront of perovskite technology development. The company plans to begin commercial production of the thin-flexible film by the end of this year. EneCoat aims to target markets where traditional silicon panels are not feasible, capitalizing on the unique advantages offered by perovskite technology. By focusing on niche applications, EneCoat aims to carve out a significant market share and establish itself as a key player in the solar industry.

Overcoming Challenges

One of the challenges associated with perovskite technology is its susceptibility to degradation when exposed to moisture. However, Sekisui Chemical, a Japanese company, is working on developing a sealant that can protect perovskite cells and extend their lifespan to up to ten years. This breakthrough could address a major concern and further enhance the viability of perovskite technology.

China’s Dominance and the Need for Competition

China currently controls over 80% of the global supply chain for silicon solar panels, giving it a significant advantage in the market. The country has made substantial investments in photovoltaic capacity, outpacing Europe by tenfold, and creating numerous manufacturing jobs. Japan’s previous dominance in conventional solar panels was eventually overshadowed by China’s aggressive production and price-cutting strategies. The development of perovskite technology presents an opportunity for Japan to regain its competitive edge and challenge China’s hegemony in the solar panel industry.


The emergence of perovskite technology in the form of a thin-flexible film holds immense potential to disrupt the global market for solar panels. With Japan’s commitment to making perovskite commercially viable and significant investments being made by both Japan and the United States, the race to challenge China’s dominance in the solar industry is gaining momentum. While challenges remain, such as the degradation of perovskite cells in the presence of moisture, ongoing research and development efforts aim to overcome these obstacles. The success of companies like EneCoat Technologies in commercializing perovskite technology will not only provide alternative options for solar panel installations but also foster healthy competition in the market, ultimately benefiting consumers and driving further innovation in renewable energy.

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