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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 49: Poster Session II
CPP 49.18: Poster
Dienstag, 17. März 2020, 14:00–16:00, P1A
Role of Additives in Perovskite film formation for large area semi-transparent devices — •Gopinath Paramasivam1, Janardan Dagar1, Florian Mathies1, Chandra Shakher Pathak3, Iris Visoly-Fisher3, and Eva Unger1,2 — 1Helmholtz Zentrum Berlin, Germany — 2Lund University, Sweden — 3Ben Gurion University, Israel
Organic-Inorganic Hybrid perovskites have seen a profound interest over the last decennary. Perovskite solar cells (PSC) have reached a record power conversion efficiencies of over 25%. Its accessibility for large-area processing has seen applications in building-integrated photovoltaics. Perovskite Tandems have been realized to surpass the Shockley Quiesser Limit which limits the efficiency of the single-junction solar cells. Semitransparent solar cells make it a wider prospect for the PSCs to be witnessed in the tandem and building-integrated photovoltaics. Herein, we aim to present a detailed role of the additives in controlling the morphology of the films and in the chemical stability of the perovskite. We deployed various polymer hybrids into the perovskite precursor to improve the performance of the perovskites, where we see a change in the morphology with different polymers and performance is enhanced. We also intend to show our results on how the polymer additives tuned our inks for large area deposition through Slot die coating and Inkjet printing. We have achieved 16% power conversion efficiency on semitransparent devices in n-i-p architecture and 19% in opaque devices through spin coating.