The overall goal of this project is to develop a lasting collaboration between top class research teams in Europe and China through fostering progress in the broad area of perovskite optoelectronics. This goal has been realized via a cross-European, trans-continental network, where joint research and training activities have been performed by researchers with different background, including materials science, chemistry, device physics, photophysics, and device engineering. We have covered both device engineering and device physics of a range of perovskite optoelectronic devices, including solar cells, light-emitting diodes, and photodetectors. The combination of complementary expertise, exchange visits and joint workshops/meetings in this project has promoted the exchange of ideas and the transfer of knowledge and skills between the researchers in Europe and China. This has led to significant progress in the research field of perovskite optoelectronics and generation of human resources and new partnerships. The research results generated in this project with a series of dissemination and communication activities have made significant impacts on the scientific community and wider specialist communities as well as the general public. It is expected that the recognition and training of young talent in the development of perovskite optoelectronics will have long lasting benefits both for fundamental research and industry in Europe.