Electrodeposited PEDOT:PSS-Al₂O₃ Improves the Steady-State Efficiency of Inverted Perovskite Solar Cells.

ABSTRACT: The atomic layer deposition (ALD) of Al₂O₃ between perovskite and the hole transporting material (HTM) PEDOT:PSS has previously been shown to improve the efficiency of perovskite solar cells. However, the costs associated with this technique make it unaffordable. In this work, the deposition of an organic-inorganic PEDOT:PSS-Cl-Al₂O₃ bilayer is performed by a simple electrochemical technique with a final annealing step, and the performance of this material as HTM in inverted perovskite solar cells is studied. It was found that this material (PEDOT:PSS-Al₂O₃) improves the solar cell performance by the same mechanisms as Al₂O₃ obtained by ALD: formation of an additional energy barrier, perovskite passivat

SUBMITTER: Erazo EA 

PROVIDER: S-EPMC8659661 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature