Efficient Organic Solar Cells Fabricated with a High‐Boiling Solvent Via Morphology Modulation Using a Small Molecule Guest Donor DOI
Longyu Li, Yuxin Wang, Zhaochen Suo

et al.

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

Published: April 17, 2025

Abstract It is necessary to employ high‐boiling solvents for the fabrication of large‐area organic solar cells (OSCs). However, controlling morphology achieve suitable phase separation high efficiency challenging when are used. In this study, HD‐1, a small molecular donor introduced, into PM6:BO‐4Cl blend as morphology‐modulating agent. This addition optimizes and enhances charge transport in ternary processed chlorobenzene (CB) solvent. The optimized active layer demonstrates improved dissociation capabilities while effectively suppressing recombination. Small‐area OSCs from CB solution achieves an power conversion (PCE), increasing 18.84% 19.42%. Furthermore, device demonstrated good tolerance thickness, with 300‐nm‐thick film achieving PCE exceeding 17%. Notably, blade‐coated module area 13.5 cm 2 , fabricated air using CB, 16.48%, showing excellent application potential. study presents straightforward effective approach optimizing enhancing fabricate solvent, highlighting its potential large‐scale production practical applications.

Language: Английский

Recent progress and prospects of dimer and multimer acceptors for efficient and stable polymer solar cells DOI Creative Commons
Jin‐Woo Lee, Jin Su Park,

Hyesu Jeon

et al.

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(9), P. 4674 - 4706

Published: Jan. 1, 2024

This review summarizes the recent progress, key design principles and prospects of dimer multimer acceptors for developing polymer solar cells (PSCs) with high efficiency long-term stability.

Language: Английский

Citations

42
The Development of Quinoxaline‐Based Electron Acceptors for High Performance Organic Solar Cells DOI
Hongxing Liu, Yanfang Geng, Zuo Xiao

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(33)

Published: June 19, 2024

In the recent advances of organic solar cells (OSCs), quinoxaline (Qx)-based nonfullerene acceptors (QxNFAs) have attracted lots attention and enabled recorded power conversion efficiency approaching 20%. As an excellent electron-withdrawing unit, Qx possesses advantages many modifiable sites, wide absorption range, low reorganization energy, so on. To develop promising QxNFAs to further enhance photovoltaic performance OSCs, it is necessary systematically summarize reported far. this review, all focused are classified into five categories as following: SM-Qx, YQx, fused-YQx, giant-YQx, polymer-Qx according molecular skeletons. The design concepts, relationships between structure optoelectronic properties, intrinsic mechanisms device discussed in detail. At end, kind materials summed up, direction prospected, challenges faced by given, constructive solutions existing problems advised. Overall, review presents unique viewpoints conquer challenge thus boost OSCs development toward commercial applications.

Language: Английский

Citations

26
Minimizing the buried interfacial energy loss using a fluorine-substituted small molecule for 25.92%-efficiency and stable inverted perovskite solar cells DOI
Xin Chen, Qi Wang, Wei Hui

et al.

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(19), P. 7342 - 7354

Published: Jan. 1, 2024

Tetrafluorosuccinic acid was introduced into the buried interface to stabilize FA cations, mediate crystal growth of perovskite and reduce hole-transport barrier, delivering a record efficiency 25.92% for RbCsFAMA-based solar cells.

Language: Английский

Citations

19
Quinoxaline-based nonfullerene acceptors with powerful core-functionalization ability enabling efficient solar energy utilization DOI
Kerui Liu, Yuanyuan Jiang,

Feng Liu

et al.

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(14), P. 4944 - 4967

Published: Jan. 1, 2024

Quinoxaline-based nonfullerene acceptors show highly tunable photoelectric properties and superior performance for sunlight utilization enabled by their powerful core-functionalization ability.

Language: Английский

Citations

15
Understanding photochemical degradation mechanisms in photoactive layer materials for organic solar cells DOI Creative Commons
Jianhua Han, Han Xu, Sri Harish Kumar Paleti

et al.

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(14), P. 7426 - 7454

Published: Jan. 1, 2024

Over the past decades, field of organic solar cells (OSCs) has witnessed a significant evolution in materials chemistry, which resulted remarkable enhancement device performance, achieving efficiencies over 19%. The photoactive layer OSCs play crucial role light absorption, charge generation, transport and stability. To facilitate scale-up OSCs, it is imperative to address photostability these electron acceptor donor materials, as their photochemical degradation process remains challenge during photo-to-electric conversion. In this review, we present an overview development emphasizing aspects chemical stability behavior that are linked OSCs. Throughout each section, highlight pathways for link degradation. We also discuss existing interdisciplinary challenges obstacles impede photostable materials. Finally, offer insights into strategies aimed at enhancing future directions developing photo-active layers, facilitating commercialization

Language: Английский

Citations

13
Halogenated Dibenzo[f,h]quinoxaline Units Constructed 2D‐Conjugated Guest Acceptors for 19% Efficiency Organic Solar Cells DOI Creative Commons

Jingshun Gao,

Hairui Bai,

Ping Li

et al.

Advanced Science, Journal Year: 2024, Volume and Issue: 11(31)

Published: June 17, 2024

Abstract Halogenation of Y‐series small‐molecule acceptors (Y‐SMAs) is identified as an effective strategy to optimize photoelectric properties for achieving improved power‐conversion‐efficiencies (PCEs) in binary organic solar cells (OSCs). However, the effect different halogenation 2D‐structured large π‐fused core guest Y‐SMAs on ternary OSCs has not yet been systematically studied. Herein, four 2D‐conjugated (X‐QTP‐4F, including halogen‐free H‐QTP‐4F, chlorinated Cl‐QTP‐4F, brominated Br‐QTP‐4F, and iodinated I‐QTP‐4F) by attaching halogens into 2D‐conjugation extended dibenzo[ f , h ]quinoxaline are developed. Among these X‐QTP‐4F, Cl‐QTP‐4F a higher absorption coefficient, optimized molecular crystallinity packing, suitable cascade energy levels, complementary with PM6:L8‐BO host. Moreover, among PM6:L8‐BO:X‐QTP‐4F blends, PM6:L8‐BO:Cl‐QTP‐4F obtains more uniform size‐suitable fibrillary network morphology, well vertical phase distribution, thus boosting charge generation, transport, extraction, suppressing loss OSCs. Consequently, PM6:L8‐BO:Cl‐QTP‐4F‐based achieve 19.0% efficiency, which state‐of‐the‐art based superior devices host (17.70%) guests H‐QTP‐4F (18.23%), Br‐QTP‐4F (18.39%), I‐QTP‐4F (17.62%). The work indicates that promising gain efficient

Language: Английский

Citations

13
Quinoxaline-based Y-type acceptors for organic solar cells DOI Creative Commons

Meiling Xie,

Zhixiang Wei, Kun Lü

et al.

Chemical Science, Journal Year: 2024, Volume and Issue: 15(22), P. 8265 - 8279

Published: Jan. 1, 2024

Minimizing energy loss plays a critical role in the quest for high-performance organic solar cells (OSCs). However, origin of large OCSs is complicated, involving strong exciton binding semiconductors, nonradiative charge-transfer state decay, defective molecular stacking network, and so on. The recently developed quinoxaline (Qx)-based acceptors have attracted extensive interest due to their low reorganization energy, high structural modification possibilities, distinctive packing modes, which contribute reduced superior charge generation/transport, thus improving photovoltaic performance OSCs. This perspective summarizes design strategies Qx-based (including small-molecule, giant dimeric polymeric acceptors) resulting optoelectronic properties device performance. In addition, ternary strategy introducing as third component reduce briefly discussed. Finally, some perspectives further exploration toward efficient, stable, industry-compatible OSCs are proposed.

Language: Английский

Citations

12
Multi‐Selenophene Strategy Enables Dimeric Acceptors‐Based Organic Solar Cells with over 18.5% Efficiency DOI
Yuyang Bai, Tianqi Chen, Xinyi Ji

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(30)

Published: May 9, 2024

Abstract Dimeric acceptor (DMA) becomes a promising alternative to small‐molecular and polymeric acceptor‐based organic solar cells (OSCs) due its well‐defined chemical structure, high batch‐to‐batch reproducibility, low molecular diffusion properties. However, DMAs usually exhibit blueshifted absorptions, limiting their photon utilization abilities. Herein, multi‐selenophene strategies are adopted develop redshifted DMAs. From monomer (YSe) dimers (DYSe‐1 DYSe‐2), reduced electron reorganization energies exciton binding enable the efficient charge dynamics in DMAs‐based OSCs. Together with effective absorption extending ≈920 nm, DYSe‐1‐ DYSe‐2‐ based OSCs outstanding short‐circuit current densities ( J SC s) over 27 mA cm −2 , which best among Besides, compared YSe‐based device, both DMA‐based devices have higher electroluminescence quantum efficiencies thus reduce nonradiative recombination loss (ΔE 3 ), contributing energy losses. The resultant open‐circuit voltages V OC of ≈0.88 V, which, combining super values, lead power conversion 18.56% 18.22%, respectively. These results highlight great potential strategy for development performance.

Language: Английский

Citations

11
Efficient and Photostable Organic Solar Cells Achieved by Alloyed Dimer Acceptors with Tailored Linker Structures DOI Creative Commons
Jin‐Woo Lee,

Cheng Sun,

Hyesu Jeon

et al.

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

Published: June 27, 2024

Abstract High power conversion efficiency (PCE) and long‐term stability are prerequisites for commercialization of organic solar cells (OSCs). Herein, two dimer acceptors (DYTVT DYTCVT) developed with different properties through linker engineering, study their effects as alloy‐like on the photovoltaic performance photostability OSCs. These ternary OSCs effectively combine advantages both acceptors. DYTVT, characterized by its high backbone planarity, ensures elevated electron mobility glass‐transition temperature ( T g ), leading to efficient charge transport enhanced Conversely, DYTCVT, significant dipole moment electrostatic potential, enhances compatibility alloy donors refines blend morphology, facilitating generation in Consequently, D18:DYTVT:DYTCVT exhibit higher PCE (18.4%) compared D18:MYT (monomer acceptor, = 16.5%), D18:DYTVT (PCE 17.4%), D18:DYTCVT 17.0%) Furthermore, owing (133 °C) than MYT 80 DYTCVT 120 °C), have significantly t 80% lifetime 4250 h under 1‐sun illumination) 40 h) 2910 h).

Language: Английский

Citations

11
A dendritic hexamer acceptor enables 19.4% efficiency with exceptional stability in organic solar cells DOI Creative Commons
Tao Jia, Tao Lin, Yang Yang

et al.

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

Published: Jan. 20, 2025

Language: Английский

Citations

1