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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 15: Poster Session I

CPP 15.45: Poster

Montag, 17. März 2025, 19:00–21:00, P4

Utilizing Ultrasonic Spray for the Integration of Organic Solar Cells on Cellulose Substrate — •Xinyu Jiang¹, Kang An², Qin Wang², Nadja Koelpin¹, Arik Willner¹, Ning Li², and Stephan V. Roth^1,3 — ¹Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg — ²Institute of PolymerOptoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology (SCUT), Guangzhou, Guangdong 510641, China — ³Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56-58, SE-100 44 Stockholm, Sweden

Cellulose nanofibrils, heralded for their eco-friendly and renewable nature, offer a significant stride toward sustainable energy solutions. Their advantageous attributes such as biocompatibility, flexibility, lightweight nature, transparency, and remarkable mechanical strength render them suitable as a base material for incorporating photovoltaic or electronic devices. We aim to explore the development of functional photovoltaics on transparent cellulose-fabricated curtains, aiming at transforming undesired sunlight into electricity. The inherent flexibility of curtains poses a fabrication challenge for solar cells, adeptly mitigated through ultrasonic spray deposition. This technique manifests as an efficacious means to engender functional layers on a large scale, ensuring a homogeneous surface with minimal roughness. Employing an advanced non-fullerene acceptor system, the resultant organic solar cell curtain showcases the promising performance, delineating a path toward substantial applications in the sustainable energy.

Keywords: organic solar cells; spray technique; cellulose nanofibrils; large-scale