Publication date: 15th December 2025
Organic electronics offer unique opportunities for sustainable and transient devices, yet reproducibility and eco‑design remain critical challenges. Within the GRETA project, we present initial results on organic field‑effect transistors (OFETs) fabricated using biodegradable substrates and semiconductors synthesized via green chemistry routes. Our work highlights the often‑overlooked role of sustainable ink formulation, demonstrating that reproducibility can be achieved without compromising device performance.
We report OFETs printed on cellulose‑based substrates with inks derived from environmentally benign solvents, achieving stable electrical characteristics across multiple fabrication batches. The integration of a plastic support cage and optimized deposition parameters ensures mechanical robustness while maintaining the transient nature of the substrate. These results establish a reproducible workflow for eco‑friendly device fabrication, bridging the gap between laboratory demonstrations and scalable production.
By focusing on sustainable materials and reproducible processes, this study lays the foundation for fully printed, transient circuits and RFID tags designed with lifecycle impact in mind. The outcomes underscore the potential of organic electronics not only as high‑performance devices but also as enablers of circular design principles in next‑generation technologies.
This project has received funding from the European Innovation Council (EIC) Programme under the grant agreement No 101161032
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