Improvement of the interfacial contact between zinc oxide and a mixed cation perovskite using carbon nanotubes for ambient-air-processed perovskite solar cells

Abstract

(a) The sandwich structure of the planar device based on the ZnO ETL and fully-processed in ambient air. (b) Significant improvement in the current density of the PSCs after using 1D carbon nanotubes in the ZnO ETLs.