Regensburg 2022 – scientific programme
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 12: Poster 1
CPP 12.59: Poster
Monday, September 5, 2022, 18:00–20:00, P1
sustainable materials for building-integrated photovoltaics — •zimei chen1, marie betker1,2, constantin harder1,3, benedikt sochor1, matthias schwarzkopf1, daniel söderberg2, nadja kölpin1, arik willner1, and stephan v. roth1,2 — 1Deutsches Elektronen-Synchrotron (DESY), 22607 Hamburg, Germany — 2KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden — 3Technische Universität München, 85748 Garching, Germany
Cellulose nanofibrils (CNF) as a bio-based material are very attractive due to their resource-saving and renewable property. They are biocompatible, flexible, lightweight, transparent and show excellent mechanical strength. With functionalized properties, they can be used as substrate for incorporating photovoltaic or electronic devices. In this project, we are going for building-integrated photovoltaics. Solar cells with PEDOT:PSS as electron blocking layer, P3HT:PCBM as photoactive layer and ZnO as hole blocking layer will be designed both in standard and inverted devices directly deposited on a CNF composite. A CNF / Ag nanowires mixture can be used as electrode material to improve the conductivity of Ag metal as electrode. Spray deposition will be used as a suitable technique to fabricate such functional layers in a large scale with homogeneous surface and a low roughness. in-situ grazing incidence small- and wide-angle X ray scattering (GISAXS/GIWAXS) will be used to observe the nanostructuring of each layer on the CNF composite base material and to optimize the fabrication process.