Professor Alexey Tameev of HSE MIEM, along with a team of colleagues, has proposed a calculation method to determine the optimal photoactive layer thickness which can maximize the power conversion efficiency of solar cells. Applicable for both polymer andperovskite solar cells, the method can become a milestone on the path from laboratory samples to solar cells made from new generation materials. The results of the research are covered in ‘A common optical approach to thickness optimization in polymer and perovskite solar cells’, an article published in Scientific Reports.

Professor Konstantin Arutyunov of the HSE Tikhonov Moscow Institute of Electronics and Mathematics (MIEM HSE), together with Chinese researchers, has developed a graphene-based mechanical resonator, in which coherent emission of sound energy quanta, or phonons, has been induced. Such devices, called phonon lasers, have wide potential for application in information processing, as well as classical and quantum sensing of materials. The study is published in the journal Optics express.

On Friday, June 11, UNESCO held a ceremony to launch its new UNESCO Science Report, which arrives at a crucial moment as countries reach the halfway mark of meeting the UN’s Sustainable Development Goals by 2030. The Report shows that, over the past five years, countries of all income levels have begun efforts to transition to economies that are both digital and green. At the ceremony, six of the Report’s authors provided overviews of trends in their regions. Representing the East European region was Professor Leonid Gokhberg, First Vice Rector of the HSE University and Director of the HSE Institute for Statistical Studies and Economics of Knowledge (ISSEK).