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

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 ITOfree 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 nonfullerene acceptor (NFA) inverted OPVs.

Antimony-Doped Tin Oxide Hole Injection Interlayer Improving the Efficiency of Perovskite Nanocrystal Light Emitting Diodes

“…More details on the synthesis and materials properties of ATO can be found elsewhere . ATO has been previously successfully applied as buffer layer in normal and inverted device architecture organic photovoltaics (OPVs) , and the development of silver nanowire (AgNW)-based electrodes for the fabrication of highly efficient ITO-free inverted OPVs …”

Conductivity Transport Mechanisms of Solution-Processed Spinel Nickel Cobaltite-Based Hole Transporting Layers and Its Implementation as Charge Selective Contact in Organic Photovoltaics

“…Organic photovoltaics (OPVs) are one of the most promising emerging solar cell technologies due to their benefits regarding low solution processing manufacturing for large-scale roll-to-roll production and less impact on the environment after disposal in comparison to other photovoltaics technologies [2][3][4][5][6][7][8]. Recently, non-fullerene acceptors (NFAs) within the active layers of solution-processed organic photovoltaics (OPVs)have greatly improved their power conversion efficiency (PCE) in the range of 19% [9,10].…”