Dual Interface Modification for Reduced Nonradiative Recombination in n–i–p Methylammonium-Free Perovskite Solar Cells

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 22, 2025

High defect concentrations at the interfaces are basis of charge extraction losses and instability in perovskite solar cells. Surface engineering with organic cations is a common practice to solve this issue. However, full implications counteranions these for device functioning often neglected. In work, we used 4-fluorophenethylammonium cation varying halide modification both methylammonium-free Pb-based n-i-p devices, observing significant differences among iodide, bromide, chloride. The treatment buried top resulted improved surface quality films largely carrier dynamics reduced nonradiative recombination. Consequently, optimal interface-modified cells surpassed 20% efficiency demonstrated remarkable operational stability. Our findings underscore potential comprehensive strategies advancing film quality, thereby facilitating their broader more successful applications.

Language: Английский

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A bifunctional Floral TiO2-TiB2 Heterostructure Buried Interface on SnO2 for 23.5% Efficient n–i–p Perovskite Solar Cells

Journal of Science Advanced Materials and Devices, Journal Year: 2025, Volume and Issue: unknown, P. 100899 - 100899

Published: May 1, 2025

Language: Английский

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Resolving Interfacial Challenges in Perovskite Solar Cells: From Defect Control to Energy Band Optimization

Surfaces and Interfaces, Journal Year: 2024, Volume and Issue: unknown, P. 105593 - 105593

Published: Dec. 1, 2024

Language: Английский

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