Non-Embedded Silver Nanowires/Antimony-Doped Tin Oxide/Polyethylenimine Transparent Electrode for Non-Fullerene Acceptor ITO-Free Inverted Organic Photovoltaics

Efthymios Georgiou; Apostolos Ioakeimidis; Ioanna Antoniou; Ioannis T Papadas; Alina Hauser; Michael Rossier; Flavio Linardi; Stelios A Choulis

doi:10.1021/acsaelm.2c01187

Non-Embedded Silver Nanowires/Antimony-Doped Tin Oxide/Polyethylenimine Transparent Electrode for Non-Fullerene Acceptor ITO-Free Inverted Organic Photovoltaics

ACS Appl Electron Mater. 2023 Jan 11;5(1):181-188. doi: 10.1021/acsaelm.2c01187. eCollection 2023 Jan 24.

Authors

Efthymios Georgiou¹, Apostolos Ioakeimidis¹, Ioanna Antoniou¹, Ioannis T Papadas^{1

2}, Alina Hauser³, Michael Rossier³, Flavio Linardi³, Stelios A Choulis¹

Affiliations

¹ Molecular Electronics and Photonics Research Unit, Department of Mechanical Engineering and Materials Science and Engineering, Cyprus University of Technology, 45 Kitiou Kyprianou Street, Limassol 3603, Cyprus.
² Department of Public and Community Health, School of Public Health, University of West Attica, Athens 11521, Greece.
³ Avantama AG, Laubisruetistr. 50, Staefa 8712, Switzerland.

Abstract

Indium tin oxide (ITO)-free solution-processed transparent electrodes are an essential component for the low-cost fabrication of organic optoelectronic devices. High-performance silver nanowires (AgNWs) ITO-free inverted organic photovoltaics (OPVs) usually require a AgNWs-embedded process. A simple cost-effective roll-to-roll production process of inverted ITO-free OPVs with AgNWs as a bottom transparent electrode requires solution-based thick metal oxides as carrier-selective contacts. In this reported study, we show that a solution-processed antimony-doped tin oxide (ATO)/polyethylenimine (PEI) electron-selective contact incorporated on the top of non-embedded AgNWs provides a high-performance ITO-free bottom electrode for non-fullerene acceptor (NFA) inverted OPVs.