Low‐Temperature, Scalable, Reactive Deposition of Tin Oxide for Perovskite Solar Cells. Issue 8 (3rd July 2022)

• Record Type: Journal Article
• Authors: Blackburn, Dominic; Routledge, Thomas J.; O'Kane, Mary; Cassella, Elena J.; Game, Onkar S.; Catley, Thomas E.; Wood, Christopher J.; McArdle, Trevor; Lidzey, David George
• Is Part Of: Solar RRL. Volume 6:Issue 8(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-07-03
• Subjects: perovskites -- photovoltaic devices -- solar cells -- tin oxide -- electron beam -- deposition -- electron-transport-layers; Solar energy -- Periodicals; Photovoltaic power generation -- Periodicals; Solar energy -- Research -- Periodicals; Photovoltaic power generation -- Research -- Periodicals; Periodicals; 333.7923
• DOI: 10.1002/solr.202200263
• Languages: English
• ISSNs: 2367-198X

Abstract

Abstract : Tin oxide (SnO x ) electron‐extraction layers are fabricated via a reactive electron‐beam evaporation process from a metal source under a partial pressure of oxygen. These are then used in standard (n‐i‐p) architecture perovskite solar cells and achieve power conversion efficiencies up to 19.3%. The SnO x deposition process is performed onto substrates maintained at low temperature compared to similar techniques, with films not requiring any subsequent high‐temperature post‐deposition annealing. This demonstrates the potential compatibility of reactive electron‐beam evaporation with roll‐to‐roll processing onto flexible polymeric substrates. Abstract : A novel method for the deposition of amorphous tin oxide layers for use as the electron transport layer (ETL) of perovskite solar cells is described. This reactive electron‐beam process involves using a tin source material and an oxygen partial pressure to oxidize the tin en route to the substrate. Devices using this ETL demonstrate efficiencies up to 19.3%.