Unraveling the Solution Aggregation Structures and Processing Resiliency of High‐Efficiency Organic Photovoltaic Blends DOI
Mengyuan Gao, Chunlong Sun, Yiwen Li

et al.

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

Published: Aug. 7, 2024

The solution aggregation structure of conjugated polymers is crucial to the morphology and resultant optoelectronic properties organic electronics considerable interest in field. Precise characterizations structures photovoltaic (OPV) blends their temperature-dependent variations remain challenging. In this work, three representative high-efficiency OPV using small-angle X-ray/neutron scattering are systematically probed. Three cases processing resiliency elucidated state-of-the-art blends. exceptional PBQx-TF can be attributed minimal changes multiscale at elevated temperatures. Importantly, a new parameter, percentage acceptors distributed within polymer aggregates (Ф), for first time blend solution, establishes direct correlation between Ф performance quantified. device well correlated with Kuhn length cylinder related L

Language: Английский

High‐Performance Photoactive Polymers: Innovations in Ternary Polymerization for Solar Applications DOI Open Access

Yu Fang,

Bin Huang,

Xiaoping Wang

et al.

Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 2, 2025

Abstract In recent years, polymer solar cells (PSCs) have achieved rapid progress, with power conversion efficiencies (PCEs) reaching up to 20.25%, driven by significant advancements in device fabrication and active‐layer materials. The ternary polymerization strategy has proven be a straightforward effective approach for developing high‐performance photoelectric polymers incorporating third monomer into the backbone. This incorporation effectively optimizes intrinsic properties, including UV–vis absorption, energy levels, solubility, crystallinity, morphology, charge transfer, mechanical robustness, batch‐to‐batch reproducibility, stability. review highlights latest designing photoactive copolymers (both donors acceptors), particular focus on stability, potential applications commercial development. aim is provide valuable guidance development of materials using strategy.

Language: Английский

Citations

2
Dimerized small molecular acceptors: Regulation of dimer conformation realizes binary organic solar cells with highly comprehensive performance DOI
Jiabin Liu, Wen Zhou,

Jiawei Deng

et al.

Nano Energy, Journal Year: 2023, Volume and Issue: 121, P. 109218 - 109218

Published: Dec. 20, 2023

Language: Английский

Citations

28
The Asymmetric Strategy of Small‐Molecule Materials for Organic Solar Cells DOI

Haotian Hu,

Jinfeng Ge, Zhenyu Chen

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(17)

Published: Feb. 8, 2024

Abstract The conjugated small‐molecule materials of organic solar cells have always played a crucial role in light‐harvesting, charge transport, morphology optimization, and the attainment efficient devices. advancement novel understanding underlying molecular design rules serve as driving force for furthering stable photovoltaic Among variety principles, symmetry‐breaking strategy, which is well developed 3,9‐bis(2‐methylene‐(3‐(1,1‐dicyanomethylene)‐indanone))‐5,5,11,11‐tetrakis(4‐hexylphenyl)‐dithieno[2,3‐d:2′,3′‐d’]‐s‐indaceno[1,2‐b:5,6‐b’]dithiophene (ITIC)‐series acceptors, recently demonstrates great potential acceptors donors realizing high power conversion efficiency. In this review, order to give deep insight on asymmetric are systematically summarized with structure elucidate structure‐performance relationship, packing behaviors, evolution. Not only delicate balance between open circuit voltage short‐circuit current density, but also reductions recombination non‐radiative considered play key points improving performance when molecule used host or guest materials. Finally, concise challenges outlooks provided future development application molecules strategies.

Language: Английский

Citations

17
A Novel Upside‐Down Thermal Annealing Method Toward High‐Quality Active Layers Enables Organic Solar Cells with Efficiency Approaching 20% DOI
Yufei Wang,

Kangbo Sun,

Chao Li

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(47)

Published: Oct. 9, 2024

Abstract The emerging non‐fullerene acceptors with low voltage losses have pushed the power conversion efficiency of organic solar cells (OSCs) to ≈20% auxiliary morphology optimization. Thermal annealing (TA), as most widely adopted post‐treatment method, has been playing an essential role in realizing potential various material systems. However, procedure TA, i.e., way that TA is performed, almost identical among thousands OSC papers since ≈30 years ago other than changes temperature and time. Herein, a reverse thermal (RTA) technique developed, which can enhance dielectric constant active layer film, thereby producing smaller Coulomb capture radius (14.93 nm), meanwhile, forming moderate nano‐scale phase aggregation more favorable face‐on molecular stacking orientation. Thus, this method reduce decline open circuit conventional by achieving decreased radiative (0.334 eV) non‐radiative (0.215 recombination loss. RTA PM6:L8‐BO‐X device increases 19.91% (certified 19.42%) compared (18.98%). It shown exhibits superb universality 4 systems, revealing its dramatic be employed wide range OSCs.

Language: Английский

Citations

14
Recent Progress of Oligomeric Non‐Fullerene Acceptors for Efficient and Stable Organic Solar Cells DOI
Qi Feng, Yanxun Li, Francis Lin

et al.

ChemSusChem, Journal Year: 2024, Volume and Issue: 17(13)

Published: Feb. 19, 2024

Organic solar cells (OSCs) have achieved remarkable power conversion efficiencies (PCEs) of over 19 % in the past few years due to rapid development non-fullerene acceptors (NFAs). However, operational stability remains a great challenge that inhibits their commercialization. Recently, oligomeric NFAs (ONFAs) attracted attention, which not only can deliver excellent device performance, but also improve thermal-/photo- OSCs. This is attributed suppressed molecular diffusion ONFAs associated with high glass-transition temperature (T

Language: Английский

Citations

13
Regulating Electron‐Phonon Coupling by Solid Additive for Efficient Organic Solar Cells DOI

Zhongwei Ge,

Jiawei Qiao,

Yun Li

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 64(1)

Published: Aug. 30, 2024

Strong electron-phonon coupling can hinder exciton transport and induce undesirable non-radiative recombination, resulting in a shortened diffusion distance constrained dissociation organic solar cells (OSCs). Therefore, suppressing is crucially important for achieveing high-performance OSCs. Here, we employ the solid additive to regulating The planar configuration of SA1 confers significant advantage lattice vibrations active layers, reducing scattering excitons by phonons. Consequently, slow but sustained hole transfer process identified SA1-assisted film, indicating an enhancement efficiency. Prolonged length lifetime are achieved blend film processed with SA1, attributed low recombination rate energetic disorder charge carrier transport. As result, high efficiency 20 % was ternary device remarkable short-circuit current. This work highlights role improving photovoltaic performance

Language: Английский

Citations

12
Applications of organic solar cells in wearable electronics DOI Creative Commons
Juanyong Wan, Ruopeng Zhang, Yaowen Li

et al.

Wearable electronics., Journal Year: 2024, Volume and Issue: 1, P. 26 - 40

Published: May 13, 2024

Recently, wearable electronic devices have been drawing considerable interest because of their versatility in a wide range applications, including motion detection, smart clothing, and health surveillance. Maintaining an adequate power supply is critical factor ensuring the continuous operation electronics. Organic solar cells (OSCs), with advantages that include high flexibility, portability, low-cost solution-based processing, achieved conversion efficiencies more than 19% can thus serve as self-powered sources for sustainably powered In this review, we outline use OSCs electronics, encompassing recent progress development flexible OSCs, semitransparent scalable manufacturing techniques OSCs. Additionally, propose challenges specific to

Language: Английский

Citations

11
Multi‐component Copolymerized Donors enable Frozen Nano‐morphology and Superior Ductility for Efficient Binary Organic Solar Cells DOI

Congqi Lin,

Ruixiang Peng, Song Wei

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(31)

Published: May 18, 2024

Multi-component copolymerized donors (MCDs) have gained significant interest and been rapidly developed in flexible organic solar cells (f-OSCs) recent years. However, ensuring the power conversion efficiency (PCE) of f-OSCs while retaining ideal mechanical properties remains an enormous challenge. The fracture strain (FS) value typical high-efficiency blend films is generally less than 8 %, which far from application standards wearable photovoltaic devices. Therefore, we a series novel MCDs after meticulous molecular design. Among them, consistent MCD backbone end-capped functional group formed highly conjugated plane, solubilization were effectively optimized by modifying proportion solubilized alkyl chains. Consequently, due to formation entangled structures with frozen film morphology considerably improved high ductility active layer, P1

Language: Английский

Citations

10
A 16.10% efficiency organic solar module with ultra-narrow interconnections fabricated via nanosecond ultraviolet laser processing DOI Creative Commons
Erming Feng, Chujun Zhang, Jianhui Chang

et al.

Cell Reports Physical Science, Journal Year: 2024, Volume and Issue: 5(3), P. 101883 - 101883

Published: March 1, 2024

Scaling organic solar cells (OSCs) for commercial use is challenging. High-quality and precise scribing needed to bridge lab-scale large-area OSC modules, but the research lags significantly. Here, we demonstrate a cost-effective patterning approach using 355-nm ultraviolet nanosecond pulsed laser performing all processes, including P1, P2, P3, in fabrication of modules. Optimized processing enables an 80-μm interconnection width, comparable with femtosecond methods, broadens process window P2 layer patterning, making module performance less impacted by indium tin oxide damage. With scribing, yields impressive geometric fill factor 98% certified power conversion efficiency 15.43% aperture area 11.30 cm2, it one top-performing modules reported. This study delivers efficient, repeatable method high-quality

Language: Английский

Citations

9
Dimerized small-molecule acceptors with electron withdrawing linker for efficient organic solar cells DOI

Jianan Niu,

Mingxin Sun,

Fuzhen Bi

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160416 - 160416

Published: Feb. 1, 2025

Language: Английский

Citations

1