Facile Synthesis of Spherical TiO2 Hollow Nanospheres with a Diameter of 150 nm for High-Performance Mesoporous Perovskite Solar Cells.

ABSTRACT: The electron transport layer (ETL) of organic-inorganic perovskite solar cells plays an important role in their power conversion efficiency (PCE). In this study, TiO2 hollow nanospheres with a diameter of 150 nm were prepared by a facile synthesis method. The synthesized TiO2 hollow nanospheres had a highly porous structure with a surface area of 85.23 m2 g-1, which is significantly higher than commercial TiO2 (P25) (54.32 m2 g-1), indicating that they can form an ideal mesoporous layer for Formamidinium iodide-based perovskite solar cells (PSCs). In addition, the nanospheres achieved a remarkable perovskite performance, and the average PCE increased from 12.87% to 14.27% with a short circuit current density of 22.36 mAcm-2, an open voltage of 0.95 V, and a fill factor of 0.65. The scannin

SUBMITTER: Quy HV 

PROVIDER: S-EPMC7866397 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature