Issue 100, 2022

In situ formation of inorganic healing overlayer for interface-stabilized all-inorganic CsPbIBr2 perovskite solar cells

Abstract

A perovskite layer functionalized to be an outermost screen can strongly affect the capacity of the underlying device to avoid becoming decomposed under external stimuli, and subsequently affect the photovoltaic performance as well. Herein, we report an interface-stabilization strategy for an all-inorganic CsPbIBr2 film involving forming in situ an inorganic ZrO2 layer to solidify the soft perovskite lattice. As a result of defect passivation and self-encapsulation, the best device achieved an enhanced efficiency of up to 10.12%, which was much higher than the 7.47% efficiency for the reference device tested, with prolonged stability under conditions of persistent light irradiation and exposure to air.

Graphical abstract: In situ formation of inorganic healing overlayer for interface-stabilized all-inorganic CsPbIBr2 perovskite solar cells

Supplementary files

Article information

Article type
Communication
Submitted
05 nov 2022
Accepted
21 nov 2022
First published
22 nov 2022

Chem. Commun., 2022,58, 13891-13894

In situ formation of inorganic healing overlayer for interface-stabilized all-inorganic CsPbIBr2 perovskite solar cells

J. Zhang, Q. Guo, Y. Zhao, J. Duan and Q. Tang, Chem. Commun., 2022, 58, 13891 DOI: 10.1039/D2CC05993B

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