20.7% highly reproducible inverted planar perovskite solar cells with enhanced fill factor and eliminated hysteresis

This is the authors' abstract. We don't add key points for this paper.

The approach of a hydrophilic group grafted buffer layer (HGGBL) was investigated for perovskite growth to realize highly efficient inverted planar perovskite solar cells with superior reproducibility, negligible hysteresis and improved stability.