Researchers Boost Solar Cell Efficiency

ICFO researchers led by Jordi Martorell experimentally reduce Boltzmann losses in organic solar cells using a silver electrode optical cavity. The study, published in Energy & Environmental Science in 2026, demonstrates a route to surpass the 33.16% Shockley, Queisser limit, potentially approaching 43% efficiency. This principle applies across photovoltaic technologies to lower costs per watt.