ArticleScience advances2025
Strain relaxation in halide perovskites via 2D/3D perovskite heterojunction formation.
Article in Science advances, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Thermally Independent Interfacial Reconstruction for Phase-Pure n = 1 2D Perovskites With Mixed-Orientation Surface Architecture.Advanced materials (Deerfield Beach, Fla.) · 2026Article
- Stoichiometric MACl/PbClACS omega · 2026Article
- Precise Management of n-Value Distribution at the 2D/3D Interface Enabling Efficient Wide-Bandgap Perovskite Solar Cells.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Low-temperature liquid-assisted vibrational stress-relief strategy enables stable and efficient perovskite solar cells.Nature communications · 2026Article
- Reversible, Photo-Induced Lattice Distortions in Halide Perovskites.Advanced materials (Deerfield Beach, Fla.) · 2026Article
- Fluorine-Doping of Mesoporous TiOAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Controlled Epitaxial Growth of Perovskite Single-Crystal Heterojunction Arrays for Self-Powered Imaging.Nano-micro letters · 2026Article
- Competitive-binding buried interlayer for year-round reproducible perovskite solar cells.Science advances · 2026Article
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Authors and funding
17 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Applying mechanical strain and strain engineering to halide perovskites has endowed them with intriguing properties. However, an in-depth understanding of mechanical strain, including residual strain in halide perovskites, remains incomplete, coupled with the critical challenge of decoupling strain effects from other interferences. Here, we examine the relaxation of residual tensile strain in three-dimensional (3D) halide perovskites through 2D/3D perovskite heterojunction formation. The 2D perovskite induces structural fragmentation in 3D perovskites, facilitating plastic relaxation of tensile strain. By isolating extrinsic crystalline phase interference and exciton-related optical disturbances, we observe that 3D perovskites retain high crystallinity only with moderate tensile strain relaxation. This moderate relaxation enhances optoelectronic properties in 3D perovskites, including broadened band-to-band absorption and prolonged charge carrier lifetime, markedly contributing to an increase in the maximum attainable power conversion efficiency in photovoltaic devices. Our findings outline conditions for strain relaxation that optimize optoelectronic properties, advancing strain engineering in halide perovskites.
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Registered trials
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