Crystal growth, defect passivation and strain release via In-situ Self-polymerization strategy enables efficient and stable perovskite solar cells

The perovskite film fabricated by the currently approbatory solution method with high temperature annealing process is inevitably accompanied by the defects and strains, which are two critical factors affecting the photovoltaic performance of perovskite solar cells (PSCs). Herein, we demonstrate an in-situ self-polymerization (ISP) strategy for high-performance PSCs by incorporating self-polymerizable n-methacrylamide (NMA) monomer additives...