Surface Passivation by Sulfur-Based 2D (TEA)₂PbI₄ for Stable and Efficient Perovskite Solar Cells.

ABSTRACT: Perovskite solar cells (PSCs) with superior performance have been recognized as a potential candidate in photovoltaic technologies. However, defects in the active perovskite layer induce nonradiative recombination which restricts the performance and stability of PSCs. The construction of a thiophene-based 2D structure is one of the significant approaches for surface passivation of hybrid PSCs that may combine the benefits of the stability of 2D perovskite with the high performance of three-dimensional (3D) perovskite. Here, a sulfur-rich spacer cation 2-thiopheneethylamine iodide (TEAI) is synthesized as a passivation agent for the construction of a three-dimensional/two-dimensional (3D/2D) perovskite bilayer structure. TEAI-treated PSCs possess a much higher efficiency (20.06%) compared t

SUBMITTER: Kundar M 

PROVIDER: S-EPMC10099414 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature