SOLUTION-PROCESSED SNO2 QUANTUM DOTS ELECTRON TRANSPORT LAYER FOR FLEXIBLE PRINTED PEROVSKITE SOLAR CELLS

Abstract

Flexible perovskite solar cells (PSCs) fabricated on lightweight plastic substrates have many excellent potential applications in emerging new technologies including wearable and portable electronics, the internet of things, smart buildings, etc. To fabricate flexible PSCs, all functional layers of devices should be processed at low temperatures. One of the best metal oxide materials to employ as the electron transport layer (ETL) in PSCs is tin oxide. One of the limitations of its use in flexible electronics is its high annealing temperature, which is unsuitable for heat-sensitive flexible substrates. Herein, the preparation and application of SnO2 quantum dots (QDs) as an ETL for flexible PSCs are demonstrated.