Spatial Atomic Arrangement of Cyclohexyl‐Based Ligands for Enhanced Interface Passivation in 2D/3D Perovskite Solar Cells DOI Creative Commons
Yonghoon Jung, Seong Cho, Seongheon Kim

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: April 22, 2025

Abstract Metal halide perovskite solar cells (PSC) have emerged as a promising candidate for next‐generation photovoltaic technologies, achieving remarkable power conversion efficiencies (PCE) in polycrystalline thin‐films. Nonetheless, their PCE and long‐term stability are often limited by high density of defects at interfaces grain boundaries. One effective strategy to mitigate these issues is forming 2D/3D heterojunction structure introducing surface‐passivating interfacial layer quasi‐2D Ruddlesden–Popper (RPP) with various functional ligand molecules. In this study, hydroxyl‐functionalized cyclohexyl ammonium hydrochloride (ACHACl) employed the molecule, which features dual groups. A comparative analysis reveals that cis‐ configurations ligands exhibit enhanced adsorption on [PbI 6 ] 4− octahedra lead perovskites, enabling more passivation including metallic Pb 0 3D Moreover, incorporating RPP improves hole extraction transport (HTL) inducing an upward shift valence band edge. Consequently, PSCs achieve 23% under 1‐Sun illumination, along significantly improved stability, presenting critical role tailoring atomic molecules boost both efficiency PSCs.

Language: Английский

Ordered charge transport in supramolecular assemblies for enhancing the performance of HTL-free carbon-based perovskite solar cells DOI

J. Šíma,

Yi Xu,

Xiaoqing Cao

et al.

Journal of Physics and Chemistry of Solids, Journal Year: 2025, Volume and Issue: unknown, P. 112760 - 112760

Published: April 1, 2025

Language: Английский

Citations

0
Spatial Atomic Arrangement of Cyclohexyl‐Based Ligands for Enhanced Interface Passivation in 2D/3D Perovskite Solar Cells DOI Creative Commons
Yonghoon Jung, Seong Cho, Seongheon Kim

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: April 22, 2025

Abstract Metal halide perovskite solar cells (PSC) have emerged as a promising candidate for next‐generation photovoltaic technologies, achieving remarkable power conversion efficiencies (PCE) in polycrystalline thin‐films. Nonetheless, their PCE and long‐term stability are often limited by high density of defects at interfaces grain boundaries. One effective strategy to mitigate these issues is forming 2D/3D heterojunction structure introducing surface‐passivating interfacial layer quasi‐2D Ruddlesden–Popper (RPP) with various functional ligand molecules. In this study, hydroxyl‐functionalized cyclohexyl ammonium hydrochloride (ACHACl) employed the molecule, which features dual groups. A comparative analysis reveals that cis‐ configurations ligands exhibit enhanced adsorption on [PbI 6 ] 4− octahedra lead perovskites, enabling more passivation including metallic Pb 0 3D Moreover, incorporating RPP improves hole extraction transport (HTL) inducing an upward shift valence band edge. Consequently, PSCs achieve 23% under 1‐Sun illumination, along significantly improved stability, presenting critical role tailoring atomic molecules boost both efficiency PSCs.

Language: Английский

Citations

0