Perovskite Solar Cells: Surface Ligand Management Aided by a Secondary Amine Enables Increased Synthesis Yield of CsPbI3 Perovskite Quantum Dots and High Photovoltaic Performance (Adv. Mater. 32/2020)

Emerging all-inorganic CsPbI3 perovskite quantum dots offer colloidal synthesis and processing using industrially friendly solvents. This is desirable for solar-cell applications and will catalyze new structures for optoelectronic devices. In article number 2000449, Jianyu Yuan, Wanli Ma, and co-workers report the development of a new surface ligand management strategy, which improves on the state-of-the-art efficiency of CsPbI3 quantum-dot solar cells.