Electrochemical Deposition of CsPbBr Perovskite for Photovoltaic Devices with Robust Ambient Stability.

Alkali halide perovskites have emerged as representative candidates for novel opto-electronic devices owing to their balanced efficiency and stability. However, their fabrication method still remains a challenging topic with conflicts among their effectiveness, complexity, and cost. Herein, a complete two-step electrochemical method has been applied in the fabrication of inorganic perovskites for the first time.

Hierarchy of interfacial passivation in inverted perovskite solar cells.

The crucial hierarchy of the interfacial passivation at different positions of perovskite solar cells together with the corresponding mechanism has been studied despite the selection of passivation mediums in this work. The passivation on the upper interface could more effectively enhance the device performance with an efficiency of 19.55% compared to the pristine and lower passivated cells (15.