2,2′‐Bipyridyl‐4,4′‐Dicarboxylic Acid Modified Buried Interface of High‐Performance Perovskite Solar Cells DOI
Mingming Zhao, Wei‐Min Gu, Ke‐Jian Jiang

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 15, 2024

Abstract The regulation of interfaces remains a critical and challenging aspect in the pursuit highly efficient stable perovskite solar cells (PSCs). Here, 2,2′‐bipyridyl‐4,4′‐dicarboxylic acid ( HBPDC ) is incorporated as an interfacial layer between SnO 2 layers PSCs. two carboxylic moieties on bind to through esterification, while its nitrogen atoms, possessing lone electron pairs, interact with uncoordinated lead (Pb 2+ atoms Lewis acid‐base interactions. This dual functionality enables simultaneous passivation surface defects both buried layers. In addition, electron‐deficient nature enhances energy band alignment facilitates transfer from . Furthermore, incorporation strengthens adhesion, improving mechanical reliability. As result, PSCs exhibited impressive power conversion efficiency (PCE) 25.41 % under standard AM 1.5G conditions, along remarkable environmental stability.

Language: Английский

Dipole Moments Regulation of Biphosphonic Acid Molecules for Self-assembled Monolayers Boosts the Efficiency of Organic Solar Cells Exceeding 19.7% DOI
Huan Liu,

Yufei Xin,

Zhaochen Suo

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(20), P. 14287 - 14296

Published: May 8, 2024

PEDOT:PSS has been widely used as a hole extraction layer (HEL) in organic solar cells (OSCs). However, their acidic nature can potentially corrode the indium tin oxide (ITO) electrode over time, leading to adverse effects on longevity of OSCs. Herein, we have developed class biphosphonic acid molecules with tunable dipole moments for self-assembled monolayers (SAMs), namely, 3-BPIC(i), 3-BPIC, and 3-BPIC-F, which exhibit an increasing moment sequence. Compared centrosymmetric axisymmetric 3-BPIC 3-BPIC-F higher adsorption energies (Eads) ITO, shorter interface spacing, more uniform coverage ITO surface, better interfacial compatibility active layer. Thanks incorporation fluorine atoms, exhibits deeper highest occupied molecular orbital (HOMO) energy level larger compared resulting enlarged work function (WF) ITO/3-BPIC-F substrate. These advantages could not only improve within device but also lower impedance reduce nonradiative recombination at interface. As result, OSCs using SAM based obtained record high efficiency 19.71%, is than that achieved from 3-BPIC(i) (13.54%) (19.34%). Importantly, 3-BPIC-F-based significantly enhanced stability utilizing HEL. Our offers guidance future design functional SAMs realize even performance cells.

Language: Английский

Citations

42
Regulation of Buried Interface through the Rapid Removal of PbI2·DMSO Complex for Enhancing Light Stability of Perovskite Solar Cells DOI
Xing Zhao,

Yujie Qiu,

Min Wang

et al.

ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(6), P. 2659 - 2669

Published: May 10, 2024

The presence of the detrimental PbI2 residue at buried interface negatively affects photovoltaic performance perovskite solar cells (PSCs). However, underlying mechanism involved in formation and elimination residual has been rarely investigated, despite its critical significance for high-efficiency stable PSCs. Here, we investigated influenced by citric acid (CA) found that CA can quickly remove PbI2·DMSO complex through a competitive adsorption forming highly crystallized PbI2. This promotes subsequent intercalation amine cations into framework perovskite. Consequently, best-performing target PSC achieves an efficiency 25.19% (a certified 24.64%) 23% from 1 cm2 PSC. Additionally, also demonstrates improved light stability after 200 h UV soaking maintaining 94.21% initial compared with only 70.76% control

Language: Английский

Citations

24
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
Iodide Management and Oriented Crystallization Modulation for High‐Performance All‐Air Processed Perovskite Solar Cells DOI Open Access

Haichao Yang,

Zhiyuan Xu, Huaxin Wang

et al.

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

Published: Oct. 24, 2024

Abstract Halide‐related defects at the buried interface not only cause nonradiative recombination, but also seriously impair long‐term stability of perovskite solar cells (PSCs). Herein, a bottom‐up, all‐in‐one modification strategy is proposed by introducing multisite antioxidant ergothioneine (EGT) to manage iodide ions and manipulate crystallization dynamics. The findings demonstrate that EGT passivates uncoordinated Sn 4+ /Pb 2+ defects, firmly anchors inhibits their oxidation I 2 . Additionally, enhances oriented perovskite, improves carrier dynamics, releases residual stresses. Consequently, optimized all‐air processed device (Rb 0.02 (FA 0.95 Cs 0.05 ) 0.98 PbI 2.91 Br 0.03 Cl 0.06 achieves remarkable power conversion efficiency (PCE) 25.13%, which among highest values reported for devices fabricated in air, along with ultrahigh open‐circuit voltage ( V OC 1.191 fill factor (FF) 84.9%. without encapsulation exhibits strong humidity, thermal, operational under ISOS protocol. Specifically, initial retained 90.12% after 1512 h thermal ageing 65 °C 90.14% 930 continuous maximum point tracking (MPPT) simulated AM1.5 illumination.

Language: Английский

Citations

12
Dual functionality of charge extraction and interface passivation by self-assembled monolayers in perovskite solar cells DOI
Muhammad Azam, Tian Du, Zhongquan Wan

et al.

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(19), P. 6974 - 7016

Published: Jan. 1, 2024

This review overviews the challenges at buried interface of PSCs, defect passivation capabilities SAMs, and its effectiveness compared to other passivating agents.

Language: Английский

Citations

11
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
Efficient Functional Compensation Layer Integrated with HTL for Improved Stability and Performance in Perovskite Solar Cells DOI Open Access

Xiangrui Du,

Fuqiang Li, Ying Li

et al.

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

Published: Jan. 5, 2025

Improving the interface characteristics between hole-transport layer (HTL) and perovskite absorber is crucial for achieving maximum efficiency in inverted solar cells (PSCs). This paper presents an effective functional compensation (FCL) composed of benzothiophene derivatives, particularly 5-(trifluoromethyl)-1-benzothiophene-2-carboxylic acid (TFMBTA); this introduced MeO-2PACz HTL to improve interfacial them. FCL improves charge transfer, hole extraction, deposition by improving surface morphology optimizing energy level alignment. The groups TFMBTA effectively passivate defects. As a result, introduction markedly reduces non-radiative recombination at layer. MeO-2PACz-based PSCs with demonstrated impressive peak power conversion 23.85%, accompanied substantially enhanced open-circuit voltage (Voc), fill factor (FF), long-term stability. Similarly, introducing PEDOT:PSS both stability PSCs, demonstrating universality FCLs across different types HTLs.

Language: Английский

Citations

1
Ligand-Assisted Reprecipitation of Highly Luminescent Perovskite Nanocrystals DOI

Shuoshuo Zang,

Jianli Chen, Yan Yu

et al.

ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 10, 2025

Ligand-assisted reprecipitation (LARP) is a facile room-temperature synthesis method suitable for the mass production of perovskite nanocrystals (NCs). However, it encounters serious problems such as low product yields and poor quality. Here, polymer ligand (P-AMDL) designed synthesized composed four monomers 2-acrylamido-2-methylpropanesulfonic acid (A), methyl methacrylate (M), 2-(dimethylamino) ethyl (D), lauryl (L). Sulfonic groups, amide ester groups provide multiple binding sites P-AMDL, long alkyl chains can improve hydrophobicity redispersion ability. CsPbBr3 NCs high quality (PLQY > 90%) are by P-AMDL-assisted in toluene. Even at proportion precursor/toluene (∼1/1 v/v), still obtained yield, which conducive to reducing use organic solvents. A scale-up well-dispersed proves that P-AMDL avoid wide particle size distribution caused mixing diffusion. After having been stored solid state 100 days, P-AMDL-stabilized be redispersible toluene recover original PL properties 90%), provides safe convenient way storage transportation NCs.

Language: Английский

Citations

1
Central fluorination strategy of biphosphonic acid molecule for self-assembled monolayer enables efficient organic solar cells DOI
Huan Liu,

Xingbang Gao,

Yufei Xin

et al.

Science China Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 14, 2025

Language: Английский

Citations

1
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