Multifunctional Universal Additive for Stable and Efficient Inverted Perovskite Solar Cells DOI Open Access
Hongbo Mo, Lian Wang, Yin Li

и другие.

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

Crystallization control via ligand–perovskite coordination for high-performance flexible perovskite solar cells DOI
Xin Chen,

Weilun Cai,

Tianqi Niu

и другие.

Energy & Environmental Science, Год журнала: 2024, Номер 17(17), С. 6256 - 6267

Опубликована: Янв. 1, 2024

Crystallization kinetics modulation of high-performance flexible perovskite photovoltaics achieving autonomous energy generation under outdoor settings.

Язык: Английский

Процитировано

21

Tailoring pyridine bridged chalcogen-concave molecules for defects passivation enables efficient and stable perovskite solar cells DOI Creative Commons
Muhammad Azam, Yao Ma, Boxue Zhang

и другие.

Nature Communications, Год журнала: 2025, Номер 16(1)

Опубликована: Янв. 11, 2025

Suppressing deep-level defects at the perovskite bulk and surface is indispensable for reducing non-radiative recombination losses improving efficiency stability of solar cells (PSCs). In this study, two Lewis bases based on chalcogen-thiophene (n-Bu4S) selenophene (n-Bu4Se) having tetra-pyridine as bridge are developed to passivate in film. The uncoordinated Pb2+ iodine vacancy can interact with chalcogen-concave group pyridine through formation acid-base adduct, particularly both be surrounded by concave molecules, resulting effective suppression charge recombination. This approach enables a power conversion (PCE) high 25.37% (25.18% certified) n-i-p PSCs stable operation 65 °C 1-sun illumination 1300 hours N2 (ISOS-L-2 protocol), retaining 94% initial efficiency. Our work provides insight into bowl-shaped base passivation coordinated strategy high-performance photovoltaic devices.

Язык: Английский

Процитировано

4

Chemical passivation and grain-boundary manipulation via in situ cross-linking strategy for scalable flexible perovskite solar cells DOI Creative Commons

Weifu Zhang,

Juanjuan Li,

Wei Song

и другие.

Science Advances, Год журнала: 2025, Номер 11(5)

Опубликована: Янв. 31, 2025

Flexible perovskite solar cells (f-PSCs) are considered the most promising candidates in portable power applications. However, high sensitivity of crystallization on substrate and intrinsic brittleness usually trade off performance f-PSCs. Herein, we introduced an initiator-free cross-linkable monomer (2,5-dioxopyrrolidin-1-yl) 5-(dithiolan-3-yl)pentanoate (FTA), which can chemically passivate defects enable real-time fine regulation crystallization. The resulting film exhibited higher crystallinity, enlarged grain size, reduced dependence substrate. In addition, cross-linked FTA [CL(FTA)] distributed along boundaries effectively released residual stress securely bound grains together. Consequently, CL(FTA)-modified flexible PSCs achieved a record-breaking efficiency 24.64% (certified 24.08%). Moreover, scalable potential has been verified by corresponding rigid modules, delivering impressive efficiencies 19.53 17.13%, respectively. Furthermore, optimized device demonstrated bending durability improved operational stability, thereby advancing progress f-PSCs toward industrialization.

Язык: Английский

Процитировано

3

Surface reconstruction of wide-bandgap perovskites enables efficient perovskite/silicon tandem solar cells DOI Creative Commons
Zheng Fang,

Bingru Deng,

Yongbin Jin

и другие.

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Дек. 4, 2024

Wide-bandgap perovskite solar cells (WBG-PSCs) are critical for developing perovskite/silicon tandem cells. The defect-rich surface of WBG-PSCs will lead to severe interfacial carrier loss and phase segregation, deteriorating the device's performance. Herein, we develop a reconstruction method by removing crystal nano-polishing then passivating newly exposed high-crystallinity surface. This can refresh perovskite/electron-transporter interface release residual lattice strain, improving charge collection inhibiting ion migration WBG perovskites. As result, achieve certified efficiencies 23.67% 21.70% opaque semi-transparent PSCs via 1.67-eV absorber. Moreover, four-terminal with efficiency 33.10% on an aperture area one square centimeter. wide-bandgap leads segregation. Here, authors reconstruct through followed passivation, achieving 33.1%

Язык: Английский

Процитировано

18

Significance of Formamidinium Incorporation in Perovskite Composition and Its Impact on Solar Cell Efficiency: A Mini‐Review DOI
Karthick Sekar, Ravichandran Manisekaran, Onyekachi Nwakanma

и другие.

Advanced Energy and Sustainability Research, Год журнала: 2024, Номер 5(8)

Опубликована: Апрель 26, 2024

Perovskite solar cells (PSCs) have gained tremendous research interest recently owing to several advantages, including low material cost, facile solution processability, bandgap tunability, and alluring device efficiency. The organic formamidinium (FA) cation‐based perovskites are mainly considered as one of the potential candidates for charge carrier generation due their excellent properties, such thermal stability than traditional perovskites. However, inevitable unfavorable polymorphism (i.e., α δ ) at room temperature still forms basis numerous works allow fabrication a high‐quality absorber enhances PSCs performance. studies resolve contemporary techniques (e.g., passivation strategy) with recent novel methods presented in this review form essence improvements PSCs. morphology also influences charge‐transfer behavior device's lifetime. Therefore, understanding these properties is essential improve quality avoid many defects. This focuses on structure pure mixed FA various halides, cation's role composition. And comprehensive overview double, triple, quadrupole results proper scientific explanations understand physics.

Язык: Английский

Процитировано

15

The mechanism study on the enhancement of inverted perovskite solar cell performance by synergistic passivation strategy DOI

Xinqi Ai,

Feiping Lu

Materials Today Communications, Год журнала: 2025, Номер unknown, С. 111505 - 111505

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

2

Tailored Multisite Rigid Conjugated Molecules to Anchor Perovskite for Comprehensive Management of Perovskite Crystallization and Defects DOI Open Access

Jia Wei,

Qiangqiang Zhao,

Juanhua Tian

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 7, 2025

Abstract engineering has emerged as a promising approach to improve the stability and power conversion efficiency of perovskite solar cells (PSCs) by regulating crystallization or defects. Conventional methods typically focus on single functional group, leading deficiency in simultaneously addressing above mentioned two aspects. Here, an innovative using (methylsulfonyl)phenyl)prop‐2‐en‐1‐amine hydroiodide (MSPPAI) is presented concurrently effectively modulate defect passivation. The unique structure MSPPAI, combining rigid conjugated with multisite anchoring groups (─NH 2 ─SO ─), enables precise regulation through strong interaction components. This promotes preferred (100) orientation crystals, enhances grain size, thus improves film quality. Meanwhile, approximate coplanarity further facilitate ordered directional growth. Furthermore, preventing volatile loss coordinating residual Pb 2+ , MSPPAI could stabilize boundaries surfaces reduce defects prevent degradation. Utilizing these mechanisms, corresponding based devices achieves 25.54% exhibits excellent that maintains 93% its initial even after 1600 h under humid conditions. molecular design strategy presents novel for improving PSCs.

Язык: Английский

Процитировано

2

Deterministic Fabrication of 2D/3D Heterojunction for Efficient and Stable Carbon-Based Hole-Transport-Layer-Free Perovskite Solar Cells DOI
He Liu, Tie Liu, Xiaoyu Ma

и другие.

ACS Applied Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 4, 2025

The incorporation of two-dimensional (2D) perovskite onto the three-dimensional (3D) structure presents an effective approach for passivating surface defects, optimizing energy level alignment, and stabilizing active layers in solar cells (PSCs), thereby facilitating realization highly efficient stable devices. However, it remains a formidable challenge to achieve precise composition controllable 2D/3D heterojunctions through solution processes. Additionally, uncontrolled cation exchange among organic constituents poses challenges controlling positioning thickness 2D phases, resulting mismatched band alignments unfavorable recombination. In this study, fabrication deterministic is achieved using solid-phase hot-pressing deposition method, wherein investigation focuses on their growth mechanisms, alignments, film stabilities. results demonstrate that uniform layer was formed 3D under influence applied pressure heat. heterojunction forms favorable alignment with adjacent carbon electrode, effectively enhancing charge extraction suppressing losses due interface As result, carbon-based hole-transport-layer-free (HTL-free) PSCs based outstanding power conversion efficiency (PCE) 16.09%. Moreover, enhances hydrophobicity, leading significant improvements stability. Therefore, study facile practical heterojunctions, offering potential opportunities cost reduction performance enhanced PSCs.

Язык: Английский

Процитировано

1

Interface Engineering with KI Modifier Enhances Performance of CsPbBr3 Perovskite Solar Cells DOI

Ruowei He,

Zhihang Jin,

Xuanheng Chen

и другие.

Materials Research Bulletin, Год журнала: 2025, Номер 186, С. 113332 - 113332

Опубликована: Фев. 6, 2025

Язык: Английский

Процитировано

1

Synergistical Interface Engineering of TiO2/Perovskite layers with RbAc to Enable Efficient CsPbI2Br Carbon-based Perovskite Solar Cells DOI

Qing Yao,

Fengli Liu, Lin Gao

и другие.

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 179256 - 179256

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

1