Effects of Chemical Valences of Sulfur on the Performance of CsFAMA Perovskite Solar Cells.

ABSTRACT: The low electrical conductivity and the high surface defect density of the TiO₂ electron transport layer (ETL) limit the quality of the following perovskite (PVK) layers and the power conversion efficiency (PCE) of corresponding perovskite solar cells (PSCs). Sulfur was reported as an effective element to passivate the TiO₂ layer and improve the PCE of PSCs. In this work, we further investigate the effect of chemical valences of sulfur on the performance of TiO₂/PVK interfaces, CsFAMA PVK layers, and solar cells using TiO₂ ETL layers treated with Na₂S, Na₂S₂O₃, and Na₂SO₄, respectively. Experimental results show that the Na₂S and Na₂S₂O₃

SUBMITTER: Xing Z 

PROVIDER: S-EPMC10269242 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature