Dr Delfina Muñoz is a Strategic project manager and senior expert at the Solar Technologies Department of the French Atomic Energy and Alternative Energies Commission in France. She started the heterojunction solar cells research in her Ph.D. at Universidad Politécnica de Cataluña developing laboratory heterojunction devices. In 2008, she joined CEA-INES and since then she has been improving heterojunction technology from the lab to the fab. She is very active at the European level leading international projects on heterojunction solar cell combining device structure with advanced concepts. She is on the board of ATAMOSTEC in Chile and at the ETIP PV steering committee contributing to roadmap and strategic agendas for PV. Her expertise goes from materials to modules with more than 100 contributions worldwide on PV. She still combines her project activity with the laboratory, directing Ph.D. students and developing heterojunction solar cells for the future photovoltaic technology.Dr Radovan Kopecek obtain the Dipl. Phys. degree at the University of Stuttgart in 1998. In 2002, he completed his Ph.D. dissertation in the field of c-Si thin film silicon solar cells in Prof. Ernst Bucher's group at the University of Konstanz. One of the founders of ISC Konstanz, Dr Kopecek is since 2007 the leader of the advanced solar cells department dealing with several European, national research projects and technology transfer in the field of silicon feedstock and solar cell development, focusing on n-type devices. Since 2022, he has been a board member of ESMC, advancing deployment of solar energy, and from 2022, board member of ATAMOSTEC in Chile. He has published numerous key papers.