All Slot-Die Coated Non-Fullerene Organic Solar Cells with PCE 11%

Neha Chaturvedi, Nicola Gasparini, Daniel Alejandro Corzo Diaz, Jules Bertrandie, Nimer Wehbe, Joel Troughton, Derya Baran

Research output: Contribution to journalArticlepeer-review

Abstract

Slot-die (SD) coating is used to fabricate fully solution processed organic solar cells (OSCs) based on a blend of high performance donor polymer (PTB7-Th) and a non-fullerene acceptor (IEICO-4F) for stable devices over extended periods of operation. The optimization of a sequential deposition process of transport and active layers, under ambient conditions, enable high efficiency slot-die coated solar cells with remarkable power conversion efficiencies (PCE) > 11.0% to bridge the gap between lab-to-fab. Fully slot-die coated inverted OSCs are demonstrated with efficiencies reaching 11% along with 1 cm2 devices, proving the scalability and reproducibility of the proposed technique. Further, replacing the evaporated Ag electrode with solution processed Ag nanowire (AgNW) electrodes shows the highest light utilization efficiency of 5.26% for semi-transparent OSC with a PCE of 9.07% and average visible transmission of 58%.
Original languageEnglish (US)
Pages (from-to)2009996
JournalAdvanced Functional Materials
DOIs
StatePublished - Jan 29 2021

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