Nano Energy, Год журнала: 2023, Номер 121, С. 109192 - 109192
Опубликована: Дек. 14, 2023
Язык: Английский
Nature, Год журнала: 2024, Номер 628(8006), С. 93 - 98
Опубликована: Фев. 21, 2024
Язык: Английский
Процитировано
158
Advanced Materials, Год журнала: 2024, Номер 36(24)
Опубликована: Март 8, 2024
Crystallization orientation plays a crucial role in determining the performance and stability of perovskite solar cells (PVSCs), whereas effective strategies for realizing oriented crystallization is still lacking. Herein, facile efficient top-down strategy reported to manipulate via treating wet film with propylamine chloride (PACl) before annealing. The PA
Язык: Английский
Процитировано
31
Advanced Materials, Год журнала: 2024, Номер 36(21)
Опубликована: Март 26, 2024
Abstract Developing an additive to effectively regulate the perovskite crystallization kinetics for optimized optoelectronic properties of film plays a vital role in obtaining high efficiency and stable solar cells (PSCs). Herein, new is designed directly synthesized precursor solution by utilizing addition reaction between but‐3‐yn‐1‐amine hydrochloride (BAH) formamidinium iodide. It found that its product may control intermediate phase regulating nucleation, leading advantageous 2D induce growth along preferred [001] orientation with not only released lattice strain but also strong interaction passivate surface defects. By taking advantage above synergistic effects, PSC delivers 25.19% open‐circuit voltage ( V OC ) 1.22 V. Additionally, devices demonstrate good stability, remaining over 90% their initial efficiencies under ambient atmosphere conditions 60 days, temperature 85 °C 200 h, or maximum power point tracking 500 h.
Язык: Английский
Процитировано
23
Advanced Functional Materials, Год журнала: 2023, Номер 34(4)
Опубликована: Окт. 17, 2023
Abstract Heterojunction perovskite solar cells combine the stability of 2D perovskites and high efficiency 3D perovskites, making them an excellent photovoltaic candidate. While heterojunctions with intermixed or gradient can reduce surface recombination, aggregation phase distribution induce transport losses, thereby limiting device fill factors. Accordingly, a bulk in situ reconstruction (BISR) strategy is proposed to on minim self‐assembled crystal seed, forming heterojunction that runs through entire active layer. This facilitates charge extraction, relieves tensile stress, avoids decomposition grain boundaries. As result, best‐performing show high‐power conversion (PCE) 24.06% 82.9% FF for small‐area (0.105 cm 2 ) superior PCE 19.2% large‐area module (5 × 5 ). Importantly, unencapsulated shows dramatically improved operational stability, maintaining 87% its initial after 8000 h storage under ambient atmosphere at room temperature. work provides effective simple approach establish simultaneously boost PSCs.
Язык: Английский
Процитировано
33
Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(31)
Опубликована: Июнь 3, 2023
Lithium bis(trifluoromethanesulfonyl)imide (Li-TFSI) has been identified as the most used and effective p-dopant for hole transport layer (HTL) in perovskite solar cells (PSCs). However, migration agglomeration of Li-TFSI HTL negatively impact PSCs performance stability. Herein, we report an strategy adding a liquid crystal organic small molecule (LQ) into doped (2,2',7,7'-tetrakis(N,N-di-p-methoxyphenylamine)-9,9'- spirobifluorene (Spiro-OMeTAD) HTL. It was found that introduction LQ Spiro-OMeTAD can efficiently enhance charge carrier extraction transportation device, which strongly retard recombination device. Consequently, efficiency is significantly enhanced to 24.42 % (Spiro-OMeTAD+LQ) from 21.03 (Spiro-OMeTAD). The chemical coordination between confine Li+ ions Li-TFSI, thus, achieving device Only 9 degradation observed un-encapsulated prepared with after 1700 h under air environment, while drops by 30 reference This work provides improving stability PSCs, gives some important insights understanding intrinsic hot carriers dynamics perovskite-based optoelectronic devices.
Язык: Английский
Процитировано
30
Nano-Micro Letters, Год журнала: 2024, Номер 16(1)
Опубликована: Апрель 11, 2024
Abstract Although covalent organic frameworks (COFs) with high π -conjugation have recently exhibited great prospects in perovskite solar cells (PSCs), their further application PSCs is still hindered by face-to-face stacking and aggregation issues. Herein, metal–organic framework (MOF-808) selected as an ideal platform for the situ homogeneous growth of a COF to construct core–shell MOF@COF nanoparticle, which could effectively inhibit aggregation. The synergistic intrinsic mechanisms induced nanoparticles reinforcing stability mitigating lead leakage been explored. complementary utilization -conjugated skeletons nanopores optimize crystallization large-grained films eliminate defects. resulting achieve impressive power conversion efficiency 23.61% superior open circuit voltage (1.20 V) maintained approximately 90% original after 2000 h (30–50% RH 25–30 °C). Benefiting from effects chemical fixation adsorption abilities nanoparticles, amount unpackaged soaked water (< 5 ppm) satisfies laboratory assessment required Resource Conservation Recovery Act Regulation.
Язык: Английский
Процитировано
17
Energy & Environmental Science, Год журнала: 2024, Номер 17(20), С. 7566 - 7599
Опубликована: Янв. 1, 2024
This work summarizes various degradation mechanisms relevant for perovskite photovoltaics on different levels from the single layers over (tandem) solar cells to modules hereof and their mitigation strategies enable reliable modules.
Язык: Английский
Процитировано
12
Nano Energy, Год журнала: 2024, Номер 122, С. 109329 - 109329
Опубликована: Фев. 2, 2024
Язык: Английский
Процитировано
11
Small, Год журнала: 2024, Номер unknown
Опубликована: Апрель 16, 2024
Different facets in perovskite crystals exhibit distinct atomic arrangements, influencing their electronic, physical, and chemical properties. Perovskite films incorporating tin oxide (SnO
Язык: Английский
Процитировано
11
ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(19), С. 24748 - 24759
Опубликована: Май 1, 2024
In the past decade, perovskite solar cell (PSC) photoelectric conversion efficiency has advanced significantly, and tin dioxide (SnO2) been extensively used as electron transport layer (ETL). Due to its high mobility, strong chemical stability, energy level matching with perovskite, easy low-temperature fabrication, SnO2 is one of most effective ETL materials. However, material an limitations. For example, films prepared by spin-coating contain a large number oxygen vacancies, resulting in loss open-circuit voltage (VOC) loss. addition, crystal quality perovskites closely related substrate, disordered orientation will lead ion migration, uncoordinated Pb2+ defects. Therefore, interface optimization essential improve stability PSC. this work, 2-(5-chloro-2-benzotriazolyl)-6-tert-butyl-p-cresol (CBTBC) was introduced for modification. On hand, hydroxyl group CBTBC forms Lewis mixture Sn atom, which reduces vacancy defect prevents nonradiative recombination. other SnO2/CBTBC can effectively influencing crystallization kinetics nitrogen element passivate defects at SnO2/perovskite interface. Finally, prevailing PCE PSC (1.68 eV) modified 20.34% (VOC = 1.214 V, JSC 20.49 mA/cm2, FF 82.49%).
Язык: Английский
Процитировано
9