Nanoscale Graded Nitrogen-Doping of TiO₂ via Pulsed Laser Deposition for Enhancing Charge Transfer in Perovskite Solar Cells.

ABSTRACT: An electron transport layer (ETL) for highly efficient perovskite solar cells (PSCs) should exhibit superior electrical transport properties and have its band levels aligned with interfacing layers to ensure efficient extraction of photo-generated carriers. Nitrogen-doped TiO₂ (TiO₂:N) is considered a promising ETL because it offers higher electrical conductivity compared to conventional ETLs made from spray-pyrolyzed TiO₂. However, the application of highly doped TiO₂:N in PSCs is often limited by the misalignment of energy band levels with adjacent layers and reduced optical transparency. In this study, a novel approach is introduced to enhance the charge transport characteristics and accurately align the electronic band alignment of TiO_2<

SUBMITTER: Jung Y 

PROVIDER: S-EPMC11673560 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature