Improving the Electron Transport Performance of TiO Film by Regulating TiCl Post-Treatment for High-Efficiency Carbon-Based Perovskite Solar Cells.

Titanium oxide (TiO ) has been widely used as an electron transport layer (ETL) in perovskite solar cells (PSCs). Typically, TiCl post-treatment is indispensable for modifying the surfaces of TiO ETL to improve the electron transport performance. However, it is challenging to produce the preferred anatase phase-dominated TiO by the TiCl post-treatment due to the higher thermodynamic stability of the rutile phase.

Self-Driven Prenucleation-Induced Perovskite Crystallization Enables Efficient Perovskite Solar Cells.

Perovskite film with high crystal quality is fundamental to achieving high-performance solar cells. A fast nucleation process is crucial to improving the crystallization quality. Here, we propose a self-driven prenucleation strategy to achieve fast nucleation.