Enhancing the Efficiency and Stability of Perovskite Solar Cells Using Chemical Bath Deposition of SnO₂ Electron Transport Layers and 3D/2D Heterojunctions.

ABSTRACT: Chemical bath deposition (CBD) is an effective technique used to produce high-quality SnO₂ electron transport layers (ETLs) employed in perovskite solar cells (PSCs). By optimizing the CBD process, high-quality SnO₂ films are obtained with minimal oxygen vacancies and close energy level alignment with the perovskite layer. In addition, the 3D perovskite layers are passivated with n-butylammonium iodide (BAI), iso-pentylammonium iodide (PNAI), or 2-methoxyethylammonium iodide (MOAI) to form 3D/2D heterojunctions, resulting in defect passivation, suppressing ion migration and improving charge carrier extraction. As a result of these heterojunctions, the power conversion efficiency (PCE) of the PSCs increased from 21.39% for the reference device to 23.70% for the device

SUBMITTER: Tian S 

PROVIDER: S-EPMC11579978 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature