Pyrrolidinium Derivative‐Based Ionic Liquid Achieves Defect Passivation for Efficient Perovskite Solar Cells Exceeding 23% DOI

Xueni Shang,

Zijie He,

Jike Ding

et al.

Solar RRL, Journal Year: 2024, Volume and Issue: 8(8)

Published: March 13, 2024

In the rapidly developing field of photovoltaics, organic–inorganic metal halide perovskites are outstanding for their exceptional power conversion efficiencies (PCE), exceeding 26%. However, full potential these materials is often undermined by prevalence defects within structure and at grain surfaces, leading to significant nonradiative recombination losses. To meet this critical challenge, study introduces a novel strategy involving pyrrolidinium derivative tetrafluoroborate ionic liquid, specifically 2‐pyrrolidin‐1‐ium‐1‐ethylammonium (PyE(BF 4 ) 2 ), as an additive in perovskite precursor. This approach aims meticulously control crystallization processes effectively passivate on surface boundaries perovskite. The formation N─H…I − hydrogen bonds strong interactions, PyE(BF not only stabilizes [PbI 6 ] 4− framework but also optimizes valence band alignment with hole transport layer. Empirical results demonstrate that solar cells modified have achieved notable PCE 23.80% remarkable stability 1300 h under standard testing protocols (ISOS‐V‐1). findings emphasize transformative multifunctional liquids enhancing performance durability perovskite‐based photovoltaic devices, marking step forward pursuing sustainable efficient energy solutions.

Language: Английский

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

et al.

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Jan. 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.

Language: Английский

Citations

3
Molecular cation passivation and bromine vacancy supplement strategy for efficient wide-bandgap perovskite solar cells DOI

Yue Yu,

Maoxia Xu,

Rui Liu

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160339 - 160339

Published: Feb. 1, 2025

Language: Английский

Citations

3
Rationally designed universal passivator for high-performance single-junction and tandem perovskite solar cells DOI Creative Commons

Zuolin Zhang,

Yinsu Feng,

Jike Ding

et al.

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Jan. 17, 2025

Interfacial trap-assisted nonradiative recombination hampers the development of metal halide perovskite solar cells (PSCs). Herein, we report a rationally designed universal passivator to realize highly efficient and stable single junction tandem PSCs. Multiple defects are simultaneously passivated by synergistic effect anion cation. Moreover, defect healing is precisely modulated carefully controlling number hydrogen atoms on cations steric hindrance. Due minimized interfacial energy loss, L-valine benzyl ester p-toluenesulfonate (VBETS) modified inverted PSCs deliver power conversion efficiency (PCE) 26.28% using vacuum flash processing technology. suppressing carrier recombination, large-area modules with an aperture area 32.144 cm2 perovskite/Si coupled VBETS passivation PCE 21.00% 30.98%, respectively. This work highlights critical role hindrance in designing molecular modulators advance stability

Language: Английский

Citations

2
The tricyclic alkaloid catalyzed crystallization of α-FAPbI3 for high performance antisolvent-free perovskite solar cells DOI

Zhengzhe Wu,

Haoyu Cai,

Tong Wu

et al.

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(13), P. 4670 - 4680

Published: Jan. 1, 2024

The tricyclic alkaloid colchicine is applied to catalyzed crystallization (CC) of high-quality α-FAPbI 3 perovskite film in the one-step antisolvent-free process for high performance solar cells.

Language: Английский

Citations

16
Perovskites and their constructed near-infrared photodetectors DOI

Wenhuan Gao,

Cong Chen

Nano Energy, Journal Year: 2024, Volume and Issue: 128, P. 109904 - 109904

Published: June 22, 2024

Language: Английский

Citations

15
Manipulating the crystallization kinetics of halide perovskites for large-area solar modules DOI Creative Commons
Zhaojin Wang, Xiaoming Duan, Jing Zhang

et al.

Communications Materials, Journal Year: 2024, Volume and Issue: 5(1)

Published: July 23, 2024

Abstract In the last decade, laboratory-scale single-junction perovskite solar cells have achieved a remarkable power conversion efficiency exceeding 26.1%. However, transition to industrial-scale production has unveiled significant gap. The central challenge lies in difficulty of achieving uniform, high-quality films on large scale. To tackle this issue, various innovative strategies for manipulating crystallization emerged recent years. Based an in-depth fundamental understanding nucleation and growth mechanisms large-area prepared through blade/slot-die coating methods, review offers critical examination manipulation modules. Lastly, we explore future avenues aimed at enhancing stability PSMs, thereby steering field toward commercially viable applications.

Language: Английский

Citations

9
Recent Advancements in Ambient‐Air Fabrication of Perovskite Solar Cells DOI Creative Commons

Yihuai Huang,

Wenguang Zhang,

Yuchen Xiong

et al.

Exploration, Journal Year: 2025, Volume and Issue: unknown

Published: March 6, 2025

ABSTRACT Perovskite solar cells (PSCs) have attracted considerable attention due to their potential for high‐efficiency conversion and cost‐effective fabrication. Although the fabrication of perovskite films in ambient air offers environmental cost advantages, presence water vapor oxygen may induce instability these films, thereby affecting device performance. This review aims comprehensively explore recent advancements PSCs air, while investigating various factors contributing degradation. Addressing challenges, diverse strategies are outlined, encompassing compositional, additive, solvent, interface engineering enhance performance stability fabricated under air. To facilitate commercialization PSCs, this paper summarizes several widely employed methods large‐scale manufacturing PSCs. Through review, we aim offer some invaluable insights guidance trajectory as well pros cons widespread applications field renewable energy.

Language: Английский

Citations

1
Bridging the buried interface with conjugated molecule for highly efficient carbon-based inorganic CsPbI2Br perovskite solar cells fabricated in air DOI
Yifei Shi, Lei Zhang, Shuming Hu

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 492, P. 152210 - 152210

Published: May 13, 2024

Language: Английский

Citations

8
Stable Surface Contact with Tailored Alkylamine Pyridine Derivatives for High‐Performance Inverted Perovskite Solar Cells DOI Open Access

Sanwan Liu,

Zhenxing Sun, X. Lei

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 16, 2024

Abstract Formamidinium‐cesium lead triiodide (FA 1‐x Cs x PbI 3 ) perovskite holds great promise for solar cells (PSCs) with both high efficiency and stability. However, the defective surfaces induced by defects residual tensile strain largely limit photovoltaic performance of corresponding devices. Here, passivation capability alkylamine‐modified pyridine derivatives surface FA is systematically studied. Among studied passivators, 3‐(2‐aminoethyl)pyridine (3‐PyEA) suitable size demonstrated to be most effective in reducing iodine impurities (V I 2 through its strong coordination N . Additionally, tail amino group (─NH from 3‐PyEA can react + cations reduce roughness films, reaction products also passivate vacancies ), further strengthen their binding interaction surfaces. These merits suppressed nonradiative recombination loss, release stress a favorable energy‐level alignment at perovskite/[6,6]‐phenyl‐C 61 ‐butyric acid methyl ester interface. Consequently, resulting inverted PSCs obtain an impressive power conversion (PCE) 25.65% (certified 25.45%, certified steady‐state 25.06%), along retaining 96.5% initial PCE after 1800 h 1‐sun operation 55 °C air.

Language: Английский

Citations

8
Managing Pb‐Related Imperfections via Rationally Designed Aniline Derivative with Bilateral Cyano and Acetyl Groups as Lewis Base for High‐Efficiency Perovskite Solar Cells Exceeding 24% DOI

Zijie He,

Zuolin Zhang,

Jike Ding

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: June 12, 2024

Abstract Pb‐related imperfections (surface or halide vacancy induced uncoordinated Pb 2+ , Pb‐I antisite, and defects) of the ionic crystal perovskite film seriously restrict photovoltaic performance solar cells (PSCs). Here, an aniline derivative N‐(4‐cyanophenyl)acetamide (CAL) is rationally designed, incorporating bilateral functional sites cyano acetyl groups, acting as Lewis base molecule for managing in surface through post‐treatment. Theoretical calculation experimental verification together proved reduced defect density, improved crystallinity, inhibited ion migration CAL‐modified perovskite. Precisely, a side group another can both coordinate with its low electrostatic potential energy. Further, core π‐π conjugate structure benzene ring ligand tend to form dimer improve mobility carrier transportation collection. The strategy demonstrates champion PCE 24.35% air‐processed PSCs over 1200 hours maximum power point tracking (MPPT) stability. This study presents comprehensive approach overcoming current limitations PSCs, paving way their integration into mainstream technologies.

Language: Английский

Citations

7