Proceedings of Online International Conference on Hybrid and Organic Photovoltaics (OnlineHOPV20)
Publication date: 22nd May 2020
The recent development of 5G networks makes the internet of things (IoT) applications a key factor in the growing data interconnection. In this context, not only sensors have been required, but also alternative ways to supply them with the self-generated needed energy, which emerges as a fundamental topic. Organic photovoltaics (OPV) are a potential solutions for energy harvesting of low-consumption sensors since they have excellent physical, optical and electrical properties, including lightweight, shape freedom, broad-range absorption spectra, semitransparency, and they are highly efficient even in extremely low-light environments. Here, we report OPV modules optimized for indoor applications fabricated using a totally scalable roll-to-roll (R2R) slot-die coating and screen-printing methods in air, flexible substrates and non-toxic solvents. A comparison between lab scale cells and modules demonstrates the non-correlation of performance in outdoor and indoor lighting and makes clear the need for a dedicated design for low-light applications.