Issue 81, 2023

Interfacial dipole engineering in all-inorganic perovskite solar cells

Abstract

Severe nonradiative recombination and energy level mismatch in perovskite solar cells (PSCs) are key factors affecting efficiency. Here, we report an effective strategy for surface passivation and interfacial dipole engineering of perovskite films. By precisely introducing electron-withdrawing and electron-donating groups on 7-azaindole, we have effectively controlled the passivation ability of N atoms and the polarity of the interfacial dipole, thereby regulating the perovskite surface's work function and obtaining the optimal energy level matching. This strategy yields an impressive efficiency of 10.76% for the CsPbBr3 PSC and exceptional stability.

Graphical abstract: Interfacial dipole engineering in all-inorganic perovskite solar cells

Supplementary files

Article information

Article type
Communication
Submitted
27 Jūl. 2023
Accepted
13 Sept. 2023
First published
13 Sept. 2023

Chem. Commun., 2023,59, 12112-12115

Interfacial dipole engineering in all-inorganic perovskite solar cells

K. Gao, L. Gao, Q. Wang, Y. Chang, Q. Zhang, Y. Zhao and Q. Tang, Chem. Commun., 2023, 59, 12112 DOI: 10.1039/D3CC03615D

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