Enhancing light harvesting in organic photodetectors and solar cells
Organic photodetectors (OPDs) and organic solar cells (OSCs) both rely on thin films containing blends of electron donors and acceptors, sandwiched between transmissive and reflective electrodes. The goal of the EU-funded RCE-OPP project is to enhance the performance of such devices by gaining a better understanding of resonant cavity effects. The project will fabricate resonant cavity enhanced photodetectors based on non-fullerene acceptors operating at longer wavelengths than the state-of-the-art OPDs. To improve OSC performance, it will tune the cavity’s resonance wavelength to the absorption peak wavelength of either donors or acceptors. The latter approach should help overcome the large voltage losses and optical absorption losses in state-of-the-art OSC devices.
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