Nonvolatile Solid Additive with a Simple Structure for Nonfullerene Organic Solar Cells DOI Creative Commons

Do Hui Kim,

Dongchan Lee, Sujung Park

et al.

Solar RRL, Journal Year: 2025, Volume and Issue: unknown

Published: May 9, 2025

In organic solar cells (OSCs), precise control over the bulk heterojunction (BHJ) morphology is critical for optimizing device performance. A widely adopted strategy regulating BHJ involves incorporation of small amounts additives. However, employing volatile solid additives necessitates volatilization control, which remains challenging. While nonvolatile with high boiling points have been explored, most exhibit large and structurally complex architectures, raising concerns regarding their role in OSCs potential impact on charge transport. Thus, a additive both point simple molecular structure highly desirable. this study, 4‐bromobiphenyl (BBP), chemical structure, was incorporated into to modulate morphology. The addition BBP enhanced donor–acceptor miscibility, suppressed excessive aggregation, promoted uniform improved crystallinity. Consequently, power conversion efficiency significantly increased 18.11%, surpassing that incorporating while also enhancing long‐term stability. This work provides promising achieving stable improving OSC performance through

Language: Английский

Allyl-terminated Small Molecule Donors Effectively Regulate Miscibility to Improve the Performance of Organic Solar Cells DOI
Jiaxin Dai, Panpan Zhang,

Bo Du

et al.

Journal of Materials Chemistry C, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Optimization of small molecule donor morphology in OSCs: allyl group-driven enhancements H35 for superior PCEs 15.21% (ASM) and 10.78% (SMD:PA) via improved miscibility, domain structure, charge transfer.

Language: Английский

Citations

2
Achieving 19.3%-efficiency binary organic solar cells via synergistically dual-phases morphology control DOI

Yushou Zhao,

Wenming Li, F. Xiao‐Feng Qin

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 506, P. 160133 - 160133

Published: Jan. 1, 2025

Language: Английский

Citations

0
Indacenodithiophene‐Based Medium‐Bandgap Guest Acceptor Enables High‐Efficiency Ternary Organic Solar Cells DOI Open Access
Nailiang Qiu, Chunyan Liu, Tengteng Zhang

et al.

Macromolecular Rapid Communications, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 14, 2025

The ternary organic solar cells (OSCs) have been proven to be an effective strategy for achieving high power conversion efficiency (PCE), exhibiting substantial potential continuous enhancement of device performance. In this work, a novel nonfullerene acceptor, IDT-FN, is developed utilizing renowned indacenodithiophene (IDT) core and moderately intense electron-withdrawing terminal groups, serving as the third component in OSCs. IDT-FN demonstrates excellent complementary light absorption cascaded energy levels with host materials D18 CH-6F, resulting enhanced photon harvesting charge transport within blend. Therefore, even as-cast manages surpass optimal binary device, superior PCE 17.34% compared latter's 17.08%. Through optimization, devices attain impressive 18.32%, accompanied by open-circuit voltage (Voc) 0.897 V, fill factor 0.745, short-circuit current density (Jsc) 27.41 mA cm-2. This significant success IDT-based medium-bandgap guests achieve state-of-the-art

Language: Английский

Citations

0
Photovoltaic Performances and Morphological Adjustment of A-Π-D’Ad-Π-A Electron-Acceptors with Twisted Backbone DOI
Jiahao Liu, Shujuan Liu,

Weiping Wang

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

0
Photovoltaic performances and morphological adjustment of A-π-D'AD-π-A electron-acceptors with twisted backbone DOI
Jiahao Liu, Shujuan Liu,

Weiping Wang

et al.

Journal of Molecular Structure, Journal Year: 2025, Volume and Issue: unknown, P. 142252 - 142252

Published: March 1, 2025

Language: Английский

Citations

0
Highly Planar Tetramer Acceptor Constructed by Vinyl Linkage Enables Organic Solar Cells with Outstanding Efficiency DOI
Fan Yu, Jiabin Liu, Wen Zhou

et al.

Chemistry of Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 28, 2025

Language: Английский

Citations

0
Nonvolatile Solid Additive with a Simple Structure for Nonfullerene Organic Solar Cells DOI Creative Commons

Do Hui Kim,

Dongchan Lee, Sujung Park

et al.

Solar RRL, Journal Year: 2025, Volume and Issue: unknown

Published: May 9, 2025

In organic solar cells (OSCs), precise control over the bulk heterojunction (BHJ) morphology is critical for optimizing device performance. A widely adopted strategy regulating BHJ involves incorporation of small amounts additives. However, employing volatile solid additives necessitates volatilization control, which remains challenging. While nonvolatile with high boiling points have been explored, most exhibit large and structurally complex architectures, raising concerns regarding their role in OSCs potential impact on charge transport. Thus, a additive both point simple molecular structure highly desirable. this study, 4‐bromobiphenyl (BBP), chemical structure, was incorporated into to modulate morphology. The addition BBP enhanced donor–acceptor miscibility, suppressed excessive aggregation, promoted uniform improved crystallinity. Consequently, power conversion efficiency significantly increased 18.11%, surpassing that incorporating while also enhancing long‐term stability. This work provides promising achieving stable improving OSC performance through

Language: Английский

Citations

0