Achieving over 42 % indoor efficiency in wide-bandgap perovskite solar cells through optimized interfacial passivation and carrier transport

Chemical Engineering Journal, Год журнала: 2024, Номер 498, С. 155512 - 155512

Опубликована: Сен. 6, 2024

Язык: Английский

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Buried Interface Passivation with 3,4,5-Trifluorophenylboronic Acid Enables Efficient and Stable Inverted Perovskite Solar Cells

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Март 7, 2025

The p-i-n type perovskite solar cells with a nickel oxide (NiOx) hole transport layer in combination self-assembled monolayers (SAMs) have high power conversion efficiency (PCE) of over 26%. surface properties the SAM significant impact on growth and crystallization film. In meanwhile, defects formed during thermal annealing at interface would act as charge recombination centers, decreasing device performance stability. To address these issues, this work introduces 3,4,5-trifluorophenylboronic acid (3,4,5-3FPBA) interfacial modification to improve buried that enable better With 3,4,5-3FPBA layer, based composition Cs0.05(FA0.98MA0.02)0.95Pb(I0.95Br0.05)3, increased from 21.99% 24.02%. A similar improvement was observed for Cs0.05FA0.82MA0.13Pb(I0.85Br0.15)3, where 21.87% 22.76%. universality has been confirmed. addition, resulting showed improved stability, maintaining 75% its initial after 500 h continuous heating 85 °C unencapsulated devices.

Язык: Английский

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Dual-Site Passivation Coupling Internal Encapsulation via 3,5-Bis(trifluoromethyl)benzenethiol for Efficient and Stable Perovskite Solar Cells

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Март 14, 2025

Perovskite solar cells (PSCs) have made significant progress in efficiency, but their long-term operational stability remains an important yet challenging issue. Here, a dual-site passivation coupling internal encapsulation strategy is developed by introducing 3,5-bis(trifluoromethyl)-benzenethiol (35BBT) at the perovskite (PVK)/hole transport layer (HTL) interface. 35BBT provides dual active sites containing sulfur (S) atoms and fluorine (F) atoms, where S sulfhydryl group F trifluoromethyl coordinate with unpaired Pb2+ to form bonds, meanwhile hydrogen bonds organic cations. This mitigates deep shallow defects PVK/HTL Notably, 35BBT, hydrophobic benzene rings covering layer, enables protect films from water oxygen invasion. Consequently, Ag-based device treatment achieves efficiency enhancement 22.03% 23.86%, retaining 89.1% of its initial even after 2000 h air exposure. fabricated also exhibits thermal 60 °C. study offers avenue for simultaneously passivating interface inhibiting water/oxygen erosion, thereby enabling fabrication efficient stable PSCs future commercial applications.

Язык: Английский

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Reconstruction of Hole Transport Layer via Co‐Self‐Assembled Molecules for High‐Performance Inverted Perovskite Solar Cells

Small, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 17, 2024

Adjusting the hole transport layer (HTL) to optimize its interface with perovskite is crucial for minimizing recombination, enhancing carrier extraction, and achieving efficient stable inverted solar cells (PSCs). However, as a commonly used HTL, self-assemble (SAM) of [2-(3,6-dimethoxy-9H-carbazol-9-yl)ethyl] phosphonic acid (MeO-2PACz) tends form clusters micelles during deposition process, leading inadequate coverage ITO substrate. Here, Co-SAM strategy employed by incorporating 4-mercaptobenzoic (SBA) 4-trifluoromethyl benzoic (TBA) additives into MeO-2PACz fabricate Co-SAM-based HTL. The introduced additive can interact MeO-2PACz, facilitating cluster dispersion thereby enabling better on improved HTL coverage. Moreover, exhibits superior energy level alignment enhance interfacial contact improve extraction efficiency well promote growth bottom grains. As result, an impressive increase power conversion (PCE) from 21.34% 23.31% achieved in device based MeO-2PACz+TBA while maintaining ≈90% initial under continuous operation at 1-sun.

Язык: Английский

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Multifunctional Universal Additive for Stable and Efficient Inverted Perovskite Solar Cells

Advanced Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 27, 2025

Abstract The performance of perovskite solar cells has significantly improved over the years in part due to defect passivation bulk and at interfaces. While many additive molecules have been reported literature, they are commonly applicable only one particular composition. Here we investigate a multifunctional additive, 4‐amino‐5‐bromo nicotinic acid (ABrNA), for use both methylammonium (MA)‐free perovskites with different Br content (bandgaps ranging from 1.53 1.73 eV) as well MA‐containing perovskites. Significant improvements obtained all compositions, which can be attributed presence multiple functional groups capable modifying crystallization passivating defects. Exceptional features ABrNA make it promising universal passivator, leads PCE increase 23.9% 25.0% CsFAMA cells, 22.0% 23.0% MA‐free cells. passivated devices also exhibit exceptional operational stability, T 90 exceeding 1000 h under ISOS‐L‐1 testing conditions. In addition, significant improvement is observed modules conventional inverted device architectures, further confirming universality additive.

Язык: Английский

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Ordered crystal growth of 2D Ruddlesden–Popper perovskites via synergistic fluorination and chlorination for efficient and stable 2D/3D heterostructure perovskite solar cells

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 162545 - 162545

Опубликована: Апрель 1, 2025

Язык: Английский

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Enhancing the efficiency and stability of inverted perovskite solar cells by using 6-(trifluoromethyl)nicotinic acid as a potent defect passivator

Journal of Materials Chemistry C, Год журнала: 2024, Номер 12(36), С. 14561 - 14571

Опубликована: Янв. 1, 2024

Incorporating 6-(trifluoromethyl)nicotinic acid into a perovskite precursor enhances the photovoltaic performance and stability of solar cells through multidentate coordination, controlled crystallization, significant reduction in non-radiative recombination centers.

Язык: Английский

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Achieving Over 42% Indoor Efficiency in Wide-Bandgap Perovskite Solar Cells Through Optimized Interfacial Passivation and Carrier Transport

Опубликована: Янв. 1, 2024

Язык: Английский

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Minimizing defect states through multidentate coordination and morphology regulation for enhancing the performance of inverted perovskite solar cells

Nanoscale, Год журнала: 2024, Номер unknown

Опубликована: Янв. 1, 2024

The interaction between CO and Pb 2+ regulated grain growth, enhanced crystallinity that effectively passivated non-radiative recombination centres CF 3 group stabilizes the perovskite structure by interacting with FA cationic defects.

Язык: Английский

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Dual‐Passivation Strategy of Bulk and Surface Enables Highly Efficient and Stable Inverted Perovskite Solar Cells

Small Methods, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 21, 2024

Inverted perovskite solar cells (PSCs) have captured significant interest due to their outstanding stability, cost-effective fabrication process, and good compatibility with flexible tandem devices. The presence of bulk surface defects is key factor in PSCs that cause non-radiative recombination degradation. To improve the efficiency stability inverted PSCs, a bulk-to-surface dual-passivation strategy employed by utilizing Oleylamine Iodide (OAmI) as additives 4-Fluorobenzylamine Hydroiodide (4-F-PMAI) passivating agents. Utilizing OAmI passivation can enhance crystallinity films reduce lattice defects. Meanwhile, 4-F-PMAI further suppresses reduces open-circuit voltage (V

Язык: Английский

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