Issue 90, 2023

Advances in chloride additives for high-efficiency perovskite solar cells: multiple points of view

Abstract

Chloride (Cl) additives are rather effective in improving the performance of perovskite solar cells (PSCs) through the modulation of crystallization process and surface morphology. After incorporating Cl-containing additives, the optoelectrical properties of perovskite films, such as the electron/hole diffusion length and carrier lifetime, are greatly enhanced. However, only a trace amount of Cl has been identified in the resultant perovskite film, and the mechanism of efficiency improvement induced by Cl remains unclear. In this review, we discuss organic and inorganic Cl additives systematically from the perspective of their solubility, volatility, cation size and chemical groups. In addition, the roles of residual Cl anions and cations are analyzed in detail. Finally, some valuable future perspectives of Cl additives are proposed.

Graphical abstract: Advances in chloride additives for high-efficiency perovskite solar cells: multiple points of view

Article information

Article type
Highlight
Submitted
26 ago 2023
Accepted
16 out 2023
First published
17 out 2023

Chem. Commun., 2023,59, 13394-13405

Advances in chloride additives for high-efficiency perovskite solar cells: multiple points of view

X. Liu, Y. Guo, Y. Cheng, S. Lu, R. Li and J. Chen, Chem. Commun., 2023, 59, 13394 DOI: 10.1039/D3CC04177H

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