Article

ICFO researchers have enhanced the efficiency of organic solar cells by optimizing fluorescence quantum yield (FQY). This improvement, detailed in ACS Energy Applied Materials, involved engineering the interface between light-absorbing and charge-transporting layers, which significantly increased the open-circuit voltage (Voc).

The study showed that applying a 5 nm lithium fluoride layer improved FQY by 18% and increased Voc by 12 mV. This method addresses efficiency bottlenecks in OSCs by reducing energy loss to heat, suggesting potential applications across different photovoltaic technologies.