ACS Applied Energy Materials, Год журнала: 2025, Номер unknown
Опубликована: Июнь 4, 2025
Язык: Английский
Small, Год журнала: 2025, Номер unknown
Опубликована: Апрель 24, 2025
Abstract The discovery of new ligand molecules is crucial for advancing the performance and stability 2D perovskites in optoelectronic devices. In this study, dihydroindole (IDN) cation, a novel organic spacer derived from cyclization phenylethylamine (PEA), employed to fabricate stable efficient quasi‐2D Ruddlesden‐Popper (RP) perovskite solar cells (PSCs). IDN‐based perovskite, 2 PbI 4 , exhibits an average Pb─I─Pb bond angle exceeding 170°, with minimal distortion inorganic layer. Furthermore, IDN possess larger dipole moment, reducing exciton binding energy 79.86 meV. films demonstrate exceptional quality, significantly enlarged grain sizes. This attributed interaction between [PbI 6 ] 4− octahedra, which enhances crystallinity, decreases trap density, extends carrier diffusion length, increases lifetime. optimized device achieves efficiency 17.60%, markedly surpassing that PEA‐based devices (11.46%). Unencapsulated RP PSCs exhibit superior thermal humidity stability, making them promising practical applications. These findings offer effective strategy development cations, paving way high‐performance PSCs.
Язык: Английский
Процитировано
0
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Апрель 29, 2025
Abstract Amid the rapid advancement of formamidine (FA)‐based perovskite solar cells (PSCs), methylammonium chloride (MACl) has emerged as a pivotal molecule, widely recognized in achieving high‐efficiency PSCs. However, precursor solution (PPS), particularly after prolonged storage, deprotonated MA⁺ (MA 0 ) undergoes cationic addition with FA⁺, leading to relative depletion FA⁺ and reduction crystalline phase purity. Herein, using Piperazine‐2‐carboxylic acid dihydrochloride (PCADCl) inhibit deprotonation by forming strong two‐point hydrogen bonds between piperazine's amine groups proton (H⁺) MA⁺is proposed, thereby extending shelf life PPS. Furthermore, COOH PCADCl furtherly suppress while promoting coordination unbound Pb 2+ , reducing film defects improving purity phase. Additionally, energy level arrangement PSCs is improved. Benefiting from this strategy, PSC fabricated modified PPS achieves an impressive efficiency 25.56% retains 96% its initial performance aging for 20 days. Moreover, unencapsulated device 97% over 1300 h. This work significantly advances process development scientific research, representing crucial step toward large‐scale production commercialization
Язык: Английский
Процитировано
0
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Май 12, 2025
Abstract Hole‐transport materials (HTMs) play an essential role in governing both the efficiency and stability of perovskite solar cells (PSCs). However, it still remains challenging to satisfy these two aspects simultaneously n–i–p structured PSCs. Here, for first time, application nickel naphthalocyanine (NiNc)‐based HTMs PSCs is reported. Three NiNc derivatives, namely BuO‐NiNc, HeO‐NiNc, OcO‐NiNc, are synthesized by modulating length alkoxy substituents. The impacts side‐chain on molecular ordering, hole‐transport property, film morphology NiNcs systematically investigated. Comprehensive experimental theoretical analyses disclose that hexyloxy‐substituted (HeO‐NiNc) exhibits highly ordered packing stronger intermolecular interactions, resulting superior hole transport characteristics. This leads a champion power conversion (PCE) 25.23% HeO‐NiNc‐based devices, which record reported metal complex‐based Moreover, encapsulated devices employing HeO‐NiNc also exhibit outstanding photo‐thermal durability, retaining over 81% after 1008 h under continuous 1‐sun irradiation at 85 °C (ISOS‐L‐2 protocol). represents one best light‐heat among with >25% PCE. work offers new routes development combine high long‐term stability.
Язык: Английский
Процитировано
0
Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 163955 - 163955
Опубликована: Май 1, 2025
Язык: Английский
Процитировано
0
Nano Energy, Год журнала: 2025, Номер unknown, С. 111169 - 111169
Опубликована: Май 1, 2025
Язык: Английский
Процитировано
0
ACS Applied Energy Materials, Год журнала: 2025, Номер unknown
Опубликована: Июнь 4, 2025
Язык: Английский
Процитировано
0