New research drives perovskiet solar cells into real-world applications
Perovskites, a family of materials defined by their crystal structure instead of basic composition, are on the rise as a cheap, efficient and adaptable alternative to silicon in solar energy. NAM-GYU Park, a pioneer in the field that developed the first working Perovskite solar cell, is now working to bring technology closer to the willingness to market by improving sustainability and scalability.
The breakthroughs of Park include improving crystal quality and preventing breakdown caused by moisture, heat and light. Laboratory cells now reach conversion -efficiency of around 27 percent, an increase of 9 percent in early prototypes. However, the challenge remains to match the 25-year stability of silicon cells. “To be really competitive, perovskiet solar cells should take as long as silicon solar cells. That is more than 25 years. We are not there yet, but we are working on it,” Park explained.
Nanostructured materials are central to this effort. By reducing surface errors, improving load separation and minimizing energy loss, nanostructures can stimulate both efficiency and stability. They also broaden the potential applications of perovskiet devices, making lightweight, flexible designs suitable for wearables, sensors, building-integrated photovoltaic, vehicle systems and even satellites, where radiation tolerance is crucial.
“For me, the greatest motivation contributes to a future future for sustainable energy,” said Park. He emphasized that although silicon technology is confronted with cost and efficiency limits, perovskites can support the energy demand on the terawatt to Petawatt scale, including rising requirements of artificial intelligence.
At the Institute of the University of Stuttgart for Fotovoltaïschën, Park joins the old employee Michael Saliba. Together they intend to test new material combinations, including semiconducting polymers and inorganic layers, which promise greater compatibility of the environment and a longer lifespan of the device. Park will also lead in-situ experiments to study excited situations in perovskites under Enlightenment, offering deeper insights into their behavior.
Saliba welcomed the collaboration and noted the complementary strengths of their groups: “Although Prof. Park is our interest in material science shares Fundamentals and structural optimization, our group also focuses on scalable production and process control.” The partnership is expected to strengthen scientific cooperation between Germany and South Korea.
“I’m looking forward to working with the Stuttgart team,” said Park. “It’s a great opportunity to combine our strengths.”
