Ehrler has developed a leading research program focused on understanding and improving perovskite semiconductors—materials that combine excellent optoelectronic properties with ion mobility. He was one of the first to reveal how ionic migration within these materials affects device performance and stability, introducing spectroscopic and simulation tools that are now widely adopted. His discovery that mechanical strain can be used to control ion mobility has led to new approaches for designing stable perovskite solar cells, influencing both academic research and industrial strategies.
In addition to his contributions to photovoltaics, Ehrler has broadened the scope of perovskite research by exploring their use in neuromorphic computing. His group has demonstrated artificial synapses and neurons with extremely low energy consumption, positioning these materials as promising building blocks for next-generation electronics. This work exemplifies the transboundary nature of his research and reflects his ability to open new directions by linking insights from chemistry, physics, and engineering.
Ehrler’s research output is highly respected in the international community, with a consistent stream of publications in leading journals and a large number of invited presentations. He has received significant recognition for his work, including an ERC Starting Grant, a Vidi grant, and the ACS Energy Lectureship Award. Beyond the lab, he has played a prominent role in shaping national science policy. As one of the initiators of the SolarNL and MaterialenNL programs, he has helped secure large-scale public investment in sustainable materials and solar energy research in the Netherlands.
A patent from his earlier work on singlet fission and optical downconversion has been licensed and is being commercialized by Cambridge Photon Technology. This illustrates his ability to translate fundamental discoveries into real-world innovation.
He is also an engaged mentor, teacher, and communicator. His group at AMOLF is known for its collaborative and inclusive atmosphere, and he has supervised numerous PhD and MSc students. He regularly gives talks aimed at broader audiences, contributes to national roadmaps, and plays an active role in scientific organizations.
Bruno Ehrler’s work combines fundamental insight with a clear view toward application. His research has already shaped the field of perovskite photovoltaics, and his broader vision continues to inspire developments in energy and materials science. The KNCV is proud to recognize his achievements and potential with the Gouden Medaille 2025.
Congratulations, Bruno Ehrler!
Katja Loos
Chair of the KNCV Gold Medal 2025 Committee
