Poly[Bis(4‐Phenyl)(2,4,6‐Trimethylphenyl)Amine] in Perovskite Solar Cells: Advances via Molecular Engineering DOI

Chanhyeok Kim,

Dae Hwan Lee,

Sunkyu Kim

et al.

Solar RRL, Journal Year: 2024, Volume and Issue: 8(9)

Published: March 25, 2024

To improve the performance of perovskite solar cells (PSCs), studying materials that constitute each layer device is important. Among commonly used in hole‐transport (HTL), poly[bis(4‐phenyl)(2,4,6‐trimethylphenyl)amine] (PTAA) stands out as one most employed. This material (HTM) offers many advantages, including thin‐film fabricating feasibility, ease synthesis, and sufficient energy levels. Further, PSCs employing PTAA HTL exhibit a high‐power conversion efficiency. However, it has some drawbacks, low crystallinity poor stability. overcome these limitations, extensive studies focusing on improving its properties by molecular engineering have been conducted. In this review, strategies for structures triaryl amine polymers are introduced. The classified into three groups: backbone engineering, side‐chain substitution, combination both. Furthermore, future directions achieving HTMs with various high‐performance suggested.

Language: Английский

A Multifunctional Dye Molecule as the Interfacial Layer for Perovskite Solar Cells DOI
Jianlin Chen, Xianfu Zhang, Xuepeng Liu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(17), P. 22079 - 22088

Published: April 19, 2024

In perovskite solar cells (PSCs), defects in the interface and mismatched energy levels can damage device performance. Improving quality is an effective way to achieve efficient stable PSCs. this work, a multifunctional dye molecule, named ThPCyAc, was designed synthesized be introduced perovskite/HTM interface. On one hand, various functional groups on acceptor unit act as Lewis base reduce defect density suppress nonradiative combinations. other stepwise energy-level alignment caused by ThPCyAc decreases accumulation of carriers for facilitating charge extraction transmission. Therefore, based devices exhibit elevated open-circuit voltage fill factor, resulting best power conversion efficiency (PCE) 23.16%, outperforming control sample lacking layer (PCE = 21.49%). Excitingly, when attempting apply it self-assembled inverted devices, still exhibits attractive behavior. It worth noting that these results indicate molecules have great potential developing materials obtain higher-performance

Language: Английский

Citations

20
Fluorinated Pentafulvalene‐Fused Hole‐Transporting Material Enhances the Performance of Perovskite Solar Cells with Efficiency Exceeding 23% DOI Open Access
Kun‐Mu Lee,

Yao‐Shen Huang,

Wei‐Hao Chiu

et al.

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(48)

Published: July 28, 2023

Abstract Organic small molecular materials with coplanar π‐conjugated system as HTMs in perovskite solar cells (PSCs) have attracted considerable attention due to their high charge transport capability and thermal stability. Herein, three novel pentafulvalene‐fused derivatives or without fluorine atoms incorporated ( YSH‐ o F m YSH‐H , respectively) are designed, synthesized, applied hole‐transporting (HTMs) PSCs fabrication. The fluorinated HTMs, exhibited higher hole mobility better extraction at the perovskite/HTM interface than non‐fluorinated one do, presumably closer intermolecular π–π packing interactions. As a result, small‐area (0.09 cm 2 ) made achieved an impressive power conversion efficiency (PCE) of 23.59% 22.76% respectively, negligible hysteresis, contrast 20.57% for ‐based devices. Furthermore, large‐area (1.00 devices, employing PCE 21.92%. Moreover, excellent long‐term device stability is demonstrated F‐substituted ), hydrophobicity. This study shows great potential low‐cost HTM efficient stable PSCs.

Language: Английский

Citations

23
Fluorinated Quasi 2D Perovskite Solar Cells with Improved Stability and Over 19% Efficiency DOI
Tong Zhou,

Qiaohui Li,

Li Zhou

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(22)

Published: March 10, 2024

Abstract 2D Ruddlesden–Popper perovskites (RPP) with excellent environmental and structural stability are emerging photovoltaic materials. Here, a benzylamine‐based spacer, namely 3,5‐difluorobenzylamine (DF‐BZA), is developed for stable efficient quasi‐2D‐RP perovskite solar cells (PSCs). Compared to benzylamine (BZA)‐based quasi‐2D RPP, the DF‐BZA‐based film exhibited superior quality significantly enlarged grain size improved charge carrier lifetime owing fluorine atoms in DF‐BZA. As result, optimized (DF‐BZA) 2 FA 3 Pb 4 I 13 PSCs achieve power conversion efficiency (PCE) of 19.24%, while BZA‐based ((BZA) ) only PCE 17.04%. This represents champion using as A‐site cation RPPs n = 4. Moreover, due effective insertion fluorinated spacers into inorganic layers, moisture resistance 85 °C thermal improved. The improvement performance highlight great potential spacer high‐performance RP PSCs.

Language: Английский

Citations

14
Modulation of intermolecular interactions in hole transporting materials for improvement of perovskite solar cell efficiency: a strategy of trifluoromethoxy isomerization DOI
Jiayi Qi, Ruiqin Wang, Xin Chen

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(7), P. 4067 - 4076

Published: Jan. 1, 2024

A trifluoromethoxy isomerization strategy to modulate intermolecular interactions is proposed balance the of hole transport materials and their interface with perovskites.

Language: Английский

Citations

12
Efficient and Stable Z907-Based Dye-Sensitized Solar Cells Enabled by Suppressed Charge Recombination and Photocatalytic Activity DOI

Xiufang Huang,

Yueyue Gao,

Wanpeng Li

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(34), P. 13007 - 13016

Published: Aug. 14, 2024

Dye-sensitized solar cells (DSSCs) based on the TiO2 photoanode are promising contenders for photovoltaic technology. However, shows severe charge recombination and leads to rapid photodegradation of absorbed dyes due its photocatalytic activity. Herein, we developed a hybrid by embedding multifunctional fulleropyrrolidine (PCBO-3) into film. The film presents higher electron mobility, aligned energy level with dyes, reduced oxygen vacancy defects, synergistically contributing suppressed Moreover, dye molecules can form hydrogen bonds PCBO-3 molecules, thus enhancing loading photon harvesting. resulting DSSCs yield efficiencies 11.6% under standard one sun illumination 32.8% 1500 lx dim light, representing highest values Z907-based DSSCs. encapsulated devices show enhanced long-term operational stability, retaining 76.8% 89.3% initial PCE light 500 h, respectively. In contrast, only 48.9% 69.5% their original efficiency could be maintained control devices. Our results suggest that anode is facile approach revitalizing

Language: Английский

Citations

11
Triple Cross‐Linking Engineering Strategies for Efficient and Stable Inverted Flexible Perovskite Solar Cells DOI

Silong Tu,

Yong Gang,

Yuanqiong Lin

et al.

Small, Journal Year: 2024, Volume and Issue: 20(29)

Published: Feb. 17, 2024

Inverted flexible perovskite solar cells (fPSCs) are promising for commercialization due to their low cost, lightweight, and excellent stability. However, enhancing fPSCs' power conversion efficiency stability remains challenging. Here, an unprecedented triple cross-linking engineering strategy is innovatively exhibit efficient stable inverted fPSCs. First, a carefully designed cross-linker, 4-fluorophenyl 5-(1,2-dithiolan-3-yl) pentanoate (FB-TA), added the precursor solution. During film's crystallization at temperature, product of FB-TA can passivate grain boundaries reduce residual strain Young's module. Then, also introduced bottom- top-interface modification film. The interfacial treating protects from water invasion strengthens interfaces. combination strategies affords highly fPSCs with champion 21.42% among state-of-the-art based on nickel oxides. More importantly, devices superior stabilities T

Language: Английский

Citations

10
Molecular Orientation Regulation of Hole Transport Semicrystalline‐Polymer Enables High‐Performance Carbon‐Electrode Perovskite Solar Cells DOI
Xiang Feng, Yueyue Gao,

Xiufang Huang

et al.

Small, Journal Year: 2024, Volume and Issue: 20(44)

Published: July 10, 2024

Carbon-based perovskite solar cells (PSCs) coupled with solution-processed hole transport layers (HTLs) have shown potential owing to their combination of low cost and high performance. However, the commonly used poly(3-hexylthiophene) (P3HT) semicrystalline-polymer HTL dominantly shows edge-on molecular orientation, in which alkyl side chains directly contact layer, resulting an electronically poor at perovskite/P3HT interface. The study adopts a synergetic strategy comprising additive solvent engineering transfer orientation P3HT into 3D orientation. target possesses improved charge as well enhanced moisture-repelling capability. Moreover, energy level alignment between layer is realized. As result, champion devices small (0.04 cm

Language: Английский

Citations

10
Effects of light irradiation on the photovoltaic performance and crystal lattices of organic–inorganic perovskites in solar cells DOI

Haruto Shimada,

Takeo Oku,

Iori Ono

et al.

Next Energy, Journal Year: 2025, Volume and Issue: 8, P. 100263 - 100263

Published: March 20, 2025

Language: Английский

Citations

1
Buried Interface Engineering‐Assisted Defects Control and Crystallization Manipulation Enables Stable Perovskite Solar Cells with Efficiency Exceeding 25% DOI Open Access
Pengxu Chen,

Qingshui Zheng,

Zhihang Jin

et al.

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

Published: Oct. 10, 2024

Abstract The presence of various defects within the electron transport layer (ETL), perovskite (PVK) layer, and their interfaces significantly affects efficiency, hysteresis, stability solar cells (PSCs) in n–i–p structure. Herein, a defect passivation strategy employing potassium 4‐methoxysalicylate (MSAK) is utilized to efficiently modulate ETL, PVK, ETL/PVK interface. functional groups −COO− −OH MSAK molecules, along with K + cations, effectively reduce tin oxide (SnO 2 ) improve properties. Importantly, MSAK‐SnO provides favorable substrate for growth highly crystallization dense layers. molecules also passivate bottom interface PVK by coordinating under‐coordinated Pb 2+ ions. Furthermore, cations can migrate into further enhancing improving photovoltaic performance PSC devices. PSCs fabricated using based on achieve remarkable power conversion efficiency (PCE) 25.47%, alongside reduced hysteresis enhanced stability. After being stored under ambient conditions 60 days, device maintains nearly 90% its initial PCE, whereas PCE pristine decreases 69.7% after aging.

Language: Английский

Citations

7
Improvement of Perovskite Solar Cells Efficiency by Management of the Electron Withdrawing Groups in Hole Transport Materials: Theoretical Calculation and Experimental Verification DOI
Jiayi Qi, Ruiqin Wang, Ye Zeng

et al.

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

Published: May 6, 2024

Abstract Management of functional groups in hole transporting materials (HTMs) is a feasible strategy to improve perovskite solar cells (PSCs) efficiency. Therefore, starting from the carbazole–diphenylamine‐based JY7 molecule, JY8 and JY9 molecules are incorporated into different electron‐withdrawing fluorine cyano on side chains. The theoretical results reveal that introduction can these highest occupied molecular orbital (HOMO) energy levels, intermolecular stacking arrangements, stronger interface adsorption perovskite. Especially, dynamics (MD) indicate fluorinated molecule yield preferred surface orientation, which exhibits To validate computational model, JY7‐JY9 synthesized assembled PSC devices. Experimental confirm HTMs exhibit outstanding performance, such as high mobility, low defect density, efficient extraction. Consequently, devices based achieve higher PCE than those JY9. This work highlights management realize goal designing for improvement

Language: Английский

Citations

6