Stabilizing black-phase FAPbI3 films for effective photovoltaic devices

Science Bulletin, Год журнала: 2025, Номер unknown

Опубликована: Апрель 1, 2025

Язык: Английский

Anion‐Cation Synergistic Regulation of Low‐Dimensional Perovskite Passivation Layer for Perovskite Solar Cells

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 24, 2025

Abstract Mixing 2D and 3D perovskite together is an effective strategy to enhance the stability of solar cells (PSCs). This has been widely used in many recent works. Typically, layer formed by introducing spacer onto surfaces through situ intercalation reaction. However, this may not stop after formed. Progressive migration into bulk leads increased n‐values phases deviation from optimized structural design. The high n‐value less stable than low be prone degradation under external stresses. Here, a heteroatom ammonium ligand, thiomorpholine (SMOR) found, which can effectively passivate surface, form 1D phase or depending on cation anion ratio type anions. Due lower formation energy at 1:1 ratio, prevent high‐n‐value show excellent thermal stability. passivation SMOR‐based boosts device efficiency 25.6% (certified 24.7%). More importantly, unpackaged maintain >80% its initial operation 85 °C for 1000 h.

Язык: Английский

2D/3D heterojunction carrier dynamics and interface evolution for efficient inverted perovskite solar cells

Journal of Energy Chemistry, Год журнала: 2024, Номер unknown

Опубликована: Дек. 1, 2024

Язык: Английский