High Cell to Module Efficiency Remaining Ratio of ≈90% for the 100 cm2 Fully Roll‐to‐Roll Gravure Printed Flexible Organic Solar Cells From Non‐Halogenated Solvent DOI Open Access

Shutao Yang,

Xingze Chen,

Yaqin Pan

et al.

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

Published: March 17, 2025

Abstract The cell‐to‐module (CTM) efficiency remaining ratio from monolithic device to large‐area module indicates the scalability potential for organic solar cells (OSCs). Nowadays, CTM value is still low as area increases larger than 100 cm 2 . In this work, crucial role of solvent in printing, which on one side influenced large homogeneity due ink rheology property, and other impacted phase separation dynamics because vaporization crystalline rate highlighted. films TMB show excessive pure printing line defects vertical direction slow volatilization speed adhesion, while Tol‐based present along surface adhesion are demonstrated. contrast, non‐halogenated solvent, o‐XY exhibited a suitable size excellent homogeneity. Consequently, fully printed 1 FOSCs exhibit an 14.81%. Moreover, with 28–104 gives over 13%, 0.9. Selecting solvents achieve uniformity appropriate morphology >100 modules great importance industrialization FOSCs.

Language: Английский

Approaching 20% Efficiency in Ortho‐Xylene Processed Organic Solar Cells by a Benzo[a]phenazine‐Core‐Based 3D Network Acceptor with Large Electronic Coupling and Long Exciton Diffusion Length DOI
Zhenghui Luo,

Weifei Wei,

Ruijie Ma

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(41)

Published: Aug. 13, 2024

Abstract High‐performance organic solar cells often rely on halogen‐containing solvents, which restrict the photovoltaic industry. Therefore, it is imperative to develop efficient materials compatible with halogen‐free solvents. Herein, a series of benzo[ ]phenazine (BP)‐core‐based small‐molecule acceptors (SMAs) achieved through an isomerization chlorination strategy presented, comprising unchlorinated NA1, 10‐chlorine substituted NA2, 8‐chlorine NA3, and 7‐chlorine NA4. Theoretical simulations highlight NA3's superior orbit overlap length tight molecular packing, attributed interactions between end group BP unit. Furthermore, NA3 demonstrates dense 3D network structures record electronic coupling 104.5 meV. These characteristics empower ortho‐xylene ( o ‐XY) processed PM6:NA3 device power conversion efficiency (PCE) 18.94%, surpassing PM6:NA1 (15.34%), PM6:NA2 (7.18%), PM6:NA4 (16.02%). Notably, significantly lower PCE in excessive self‐aggregation NA2 ‐XY. Importantly, incorporation D18‐Cl into binary blend enhances crystallographic ordering increases exciton diffusion donor phase, resulting ternary 19.75% (certified as 19.39%). findings underscore significance incorporating new electron‐deficient units design SMAs tailored for environmentally benign solvent processing OSCs.

Language: Английский

Citations

29
Perspective on Flexible Organic Solar Cells for Self-Powered Wearable Applications DOI

Juan Zhu,

Jinfeng Xia,

Yaowen Li

et al.

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

Published: Jan. 15, 2025

The growing advancement of wearable technologies and sophisticated sensors has driven the need for environmentally friendly reliable energy sources with robust mechanical stability. Flexible organic solar cells (OSCs) have become promising substitutes traditional solutions thanks to their remarkable flexibility high power conversion efficiency (PCE). These unique properties allow flexible OSCs seamlessly integrate diverse devices substrates, making them an excellent choice powering various electronic by efficiently harvesting energy. This review summarizes recent achievements in from perspective self-powered applications. It discusses advancements materials, including substrates transparent electrodes, evaluates performance criteria, compares PCEs rigid counterparts. Subsequently, novel applications are explored. Finally, a summary perspectives on current challenges obstacles facing wearables provided, aiming inspire further research toward practical implementations.

Language: Английский

Citations

3
Central core regulation by methoxy in quinoxaline-based non-fullerene acceptors for over 19% efficiency organic solar cells DOI
Hongbo Bi,

Dingding Qiu,

Hao Zhang

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159972 - 159972

Published: Jan. 1, 2025

Language: Английский

Citations

3
Sustainable Solution Processing Toward High‐Efficiency Organic Solar Cells: A Comprehensive Review of Materials, Strategies, and Applications DOI
Bing Ma, Yong Yan,

Maoheng Wu

et al.

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

Published: Oct. 25, 2024

Abstract Organic solar cells (OSCs) have emerged as promising candidates for renewable energy harvesting due to their lightweight, flexible, and low‐cost fabrication potential. The efficiency of OSCs is largely determined by the choice solvents, which significantly affect film morphology active layers, intermixed donor‐acceptor domains, overall device performance. Beginning with an introduction importance solvent selection, screening classification emphasizing characteristics based on sustainability, solubility, other additional considerations are explored. Various non‐halogenated highlighting commonly used aromatic biomass‐derived water/alcohol‐based solvents state‐of‐the‐art donor acceptor materials, focusing efficient materials such PM6 D18, high‐performing Y‐series acceptors also presented. Strategies developing high‐performance processed using examined, including engineering additive additive‐free approaches, ternary strategies, layer‐by‐layer techniques. large‐area devices addressed, blade‐coating, slot‐coating, processing Finally, this review outlines future research directions in OSCs, need continuous innovation overcome existing limitations propel OSC technology toward commercial viability.

Language: Английский

Citations

11
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
Triplet State Suppression for Energy Loss Reduction in 20% Nonhalogenated Solvent Processed Binary Organic Solar Cells DOI Creative Commons
Ruijie Ma, Bosen Zou, Yulong Hai

et al.

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

Published: March 16, 2025

Abstract Boosting power conversion efficiency (PCE) of organic solar cells (OSCs) has been restricted by its undesirably high energy loss, especially for those nonhalogenated solvent‐processed ones. Here,a dichloro‐methoxylated terminal group in an asymmetric small molecular acceptor design, which realizes a significantly reduced non‐radiative loss (0.179 eV) compared to symmetric counterpart (0.202 eV), is reported. Consequently, the device improved up 20% PM6:BTP‐eC9‐4ClO, without sacrificing photon harvest or charge transport ability control system PM6:BTP‐eC9. Further characterizations reveal BTP‐eC9‐4ClO's blend film demonstrates suppressed triplet state formation, enabled enhanced electron delocalization. In addition, BTP‐eC9‐4ClO found be thermally stabler than BTP‐eC9, and thus providing stability, whose T80 value reaches > 7800 h under 80 °C anneal N 2 via linear extrapolation. This work represents state‐of‐the‐art performance binary OSCs with certified results (19.45%).

Language: Английский

Citations

1
Achieving 19.4% Efficiency Polymer Solar Cells by Reducing Backbone Disorder in Donor Terpolymers DOI
Guangjun Zhang,

Qingxing Wu,

Yuwei Duan

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(48)

Published: Aug. 6, 2024

Abstract The ternary copolymerization strategy has emerged as a promising for developing high‐efficiency donor polymers in polymer solar cells (PSCs). Terpolymers based on the star PM6 have already realized good photovoltaic performance. However, challenges such intricate synthesis of fluorine‐substituted benzodithiophene (F‐BDT) unit and entropy increase induced by backbone disorder hindered construction high‐performance terpolymers. In this work, these are addressed opting cost‐effective chlorinated‐substituted (Cl‐BDT) an alternative to F‐BDT incorporating large dipole moment electron‐deficient TPD group third component into PM7. As expected, approach effectively suppresses terpolymer while enhancing crystallinity, thereby optimizing morphology improving charge generation transport. Remarkably, PM7‐TPD‐10‐based device with 10% replacement achieves champion power conversion efficiency (PCE) 18.26%. After introducing PM7‐TPD‐10 D18:L8‐BO blend, dual mechanism 19.40% is realized. This work demonstrates that high moiety construct terpolymers important suppress facilitating optimization

Language: Английский

Citations

9
The Critical Isomerization Effect of Core Bromination on Nonfullerene Acceptors in Achieving High‐Performance Organic Solar Cells with Low Energy Loss DOI Open Access
Kerui Liu, Yuanyuan Jiang, Feng Liu

et al.

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

Published: Dec. 30, 2024

Highly efficient nonfullerene acceptors (NFAs) for organic solar cells (OSCs) with low energy loss (E

Language: Английский

Citations

7
Introduction of organo‐modified carbon nanotubes into fluoropolymer‐based hybrids containing polyrotaxane and cellulose nanofibers as organic fillers and their drawn orientation effects DOI Creative Commons

Pinjung Chu,

Chisato Nara,

Rokibul Hasan Rumon

et al.

Polymer Composites, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 7, 2025

Abstract The effect of drawn orientation on a polymer‐based composite containing two types functional organic fillers, organo‐modified single‐walled carbon nanotubes (SWCNTs), and trace amount dispersant was investigated. To improve the dispersion state SWCNTs in presence we introduced small fluorinated phosphonic acid addition to acid‐modified into polymer matrix. Fluorinated functioned as for polymer. However, thermal mechanical properties corresponding composites prepared by melt‐compounding did not necessarily improve. When uniaxially drawn, SWCNT aggregates were observed be oriented direction drawing. In addition, draw‐orienting process improved composites. Specifically, Young's modulus increased more than seven times when 7 times, reaching 251 MPa. Furthermore, terms elongation properties, strain value reached 78%, nearly four original value, 5 times. Highlights Carbon attained introduce fillers. Surface modification (SWCNTs) effective nanohybridization. Mechanical improved. about 4

Language: Английский

Citations

1
Kinetics Manipulation Enabled by Solubility Control Toward 19% Organic Solar Cells via Compatible Air Coating DOI Creative Commons
Yongwen Lang, Ying Zhang,

Hao Xia

et al.

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

Published: Feb. 23, 2025

Abstract Blade coating is a promising tool for upscaling organic solar cells (OSCs). However, the performances of blade‐coated OSCs still lag behind their spin‐coated counterparts, limiting competitive edge towards commercialization. One main reasons that controlling film aggregation kinetics and morphology becomes challenging during transition from spin to blade coating, especially when using high boiling point solvents, which can result in excessive aggregation. Therefore, deeper understanding appraisal formation influenced by methods crucial. In this work, it demonstrated ink solubility tuning incorporating twisted third component (BTP‐4Cl) induce rapid crystallization behavior promote fine phase separation between donor polymer (PM6) acceptor (BTP‐eC9) coating. As result, power conversion efficiency (PCE) 19.67% obtained (0.04 cm 2 ), one state‐of‐the‐art efficiencies among reported (19.76% devices). addition, found inhibited contributes enhancing light stability device. This strategy offered novel insights into effectiveness solubility‐tuning approaches achieving highly efficient stable under open‐air conditions.

Language: Английский

Citations

1