Vertical phase separation and morphology optimization of layer-by-layer non-fullerene organic solar cells DOI
Bocheng Ning,

Yumeng Ma,

Jun Zhang

et al.

Journal of Central South University, Journal Year: 2024, Volume and Issue: 31(12), P. 4338 - 4365

Published: Dec. 1, 2024

Language: Английский

Collaborative regulation of rheological property and crystallization kinetics by conjugation-extension strategy enables green-processed organic photovoltaics with outstanding efficiency, stability and flexibility DOI
Jiabin Liu, Xunfan Liao, Wen Zhou

et al.

Science China Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: March 24, 2025

Language: Английский

Citations

1
A Pyrazinyl Wide‐Bandgap Polymer Donor Yields 19.35% Efficiency in Tandem Organic Solar Cells DOI

Huazhe Liang,

Kangqiao Ma,

Shuhui Ding

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(42)

Published: Aug. 3, 2024

Abstract In series‐connected tandem organic solar cells (TOSCs), various light‐harvesting molecules with complementary absorptions are explored the aim of collaboratively utilizing light to maximum extent. sharp contrast small molecular acceptors that possessing almost successively tunable bandgaps, high‐performance wide‐bandgap (WBG) polymer donors in TOSCs quite scarce, only PM6 (optical E g opt = 1.80 eV) and D18 ( 1.98 being widely used. Herein, develop WBG large open‐circuit voltages V OC ) high‐energy photon absorption, two pyrazinyl donors, PPy1 PPy2, synthesized branched 2‐butyloctyl n‐dodecyl chains on polymeric backbones, respectively, demonstrating downshifted highest occupied orbital energy levels ≈−5.60 eV thus afford over 2.0 eV. Consequently, when blending a acceptor F‐ThCl, PPy2:F‐ThCl‐based devices exhibit higher power conversion efficiency (PCE) 14.50% fill factor 77.66%. its 1.07 V, based PPy2 further fabricated an impressive PCE 19.35% by using narrow bandgap blend PM6:CH1007:F‐2F as rear cell. This work demonstrates great potential pyrazine units constructing for achieving record‐breaking TOSCs.

Language: Английский

Citations

5
High-performance organic solar cells enabled by the p-i-n structure and ternary strategy DOI

Ju Zhao,

Jiabin Zhang,

Yuejia Dou

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(37), P. 24862 - 24871

Published: Jan. 1, 2024

The layer-by-layer (LBL) strategy is an efficient way to improve the power conversion efficiency (PCE) of organic solar cells (OSCs) due their superiorities in vertical component distribution.

Language: Английский

Citations

5
Layer‐by‐Layer All‐Polymer Solar Cells Approaching 19% with Dual‐Donor Modulation of an Interpenetrating Network DOI

Yuejia Dou,

Jiabin Zhang,

Zuiyi Zhong

et al.

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

Published: Sept. 13, 2024

Abstract All‐polymer systems are promising for commercial applications because the lower diffusivity of polymers helps to inhibit large‐scaled phase separation and obtain excellent stability. Achieving a fine‐tuned morphology active layer with an appropriate vertical has long been major goal in obtaining efficient all‐polymer solar cells (all‐PSCs). Herein, through synergistic effect layer‐by‐layer (LBL) structure dual donor strategy, high performance stable all‐PSCs prepared by constructing interpenetrating network. The introduction third component PTzBI‐dF suppresses excessive aggregation reduces exciton recombination. formation favorable p‐i‐n adjust distribution improve Ultimately, fine optimization, PBQx‐T‐Cl:PTzBI‐dF/PY‐IT achieves PCE 18.83%. This research demonstrates simple effective way construct high‐performance OSCs desirable distribution.

Language: Английский

Citations

5
Regulation of Film Morphology and Vertical Phase Separation for Inverted Organic Solar Cells via a Volatile Solvent Additive DOI
Ming-Hui Huang,

Xueting Yi,

Zekun Liu

et al.

Organic Electronics, Journal Year: 2025, Volume and Issue: unknown, P. 107207 - 107207

Published: Jan. 1, 2025

Language: Английский

Citations

0
Unravel the Distinctive Roles of Liquid and Solid Additives in Blade‐Coated Active Layer for Organic Solar Cell Modules DOI

Adiljan Wupur,

Yaokai Li,

Yongmin Luo

et al.

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

Published: Sept. 24, 2024

Abstract Although encouraging progress in spin‐coated small‐area organic solar cells (OSCs), reducing efficiency loss caused by differences film uniformity and morphology when up‐scaled to large‐area modules through meniscus‐guided coating is an important but unsolved issue. In this work, in‐depth research conducted on the influence of both liquid solid additives active layer blade‐coated PM6:L8‐BO binary system. The study reveals that high boiling point like 1,8‐diiodooctane (DIO) used blade‐coating not only delay volatilization solvent also trigger Marangoni flow same direction as capillary flow, causing excessive aggregation acceptors, therefore destroying device performance. On contrary, additive 2‐Iododiphenyl ether (IDPE), which first reported can preserve mechanism for improving performance while effectively suppressing acceptors during film‐forming process from halogen‐free toluene, resulting highly homogeneous films. Consequently, with impressive 15.34% a total module area 18.90 cm 2 via based are achieved. This provides deep understanding effect perspective fluid mechanisms gives pathway development green printed high‐efficiency OSCs.

Language: Английский

Citations

3
Enhanced moisture and thermal stability of transparent electrodes via crosslinking for large-area flexible organic photovoltaic modules DOI
Xin Lü, Yang Liu,

Ruiyu Tian

et al.

Energy & Environmental Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Crosslinking enhanced the thermal and moisture stability of AgNWs-em-PVA flexible transparent electrode, which enabled fabrication large-area (52.3 cm 2 ), organic photovoltaic modules with a power conversion efficiency 14.78%.

Language: Английский

Citations

0
Recent Advances in Thermo- and Photostabilities of Organic Solar Cells: Material Design and Morphology Control DOI Creative Commons

Jinyang Yu,

Shuixing Li, Minmin Shi

et al.

Polymer science & technology., Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 27, 2025

Language: Английский

Citations

0
3,4-Difluoropyridine based polymer additives for optimizing aggregation and phase separation enable 20.07% efficiency layer-by-layer organic solar cells DOI

Chunhong Zhou,

Xingjian Dai,

Chentong Liao

et al.

Polymer, Journal Year: 2025, Volume and Issue: unknown, P. 128380 - 128380

Published: April 1, 2025

Language: Английский

Citations

0
Additive-assisted molecular aggregation manipulation towards efficient thick organic solar cells DOI Creative Commons

Xueting Yi,

Zekun Liu,

Mengan Zhao

et al.

Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

The additive 1-phenylnaphthalene (PN) with large steric hindrance is used to promote J-aggregation of N3 molecules, which conductive broadening absorption spectra and improving charge transport for high-performance thick OSCs.

Language: Английский

Citations

2