Chiral Steric Effect for Improved Phase Transition and Exciton Dynamics in Efficient and Stable All‐Polymer Solar Cells DOI
Wenqing Zhang, Renjie Hu,

Zhen Fu

et al.

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

Published: Dec. 6, 2024

Abstract Chiral materials exhibit distinctive properties that improve the performance of organic solar cells (OSCs). In this study, chiral PM6 is integrated into PM6:PY‐IT blends to fabricate quasi‐binary OSCs (cOSCs). The produced devices displayed an increased short‐circuit current and fill factor, achieving a peak efficiency 16.60% compared 15.96% for standard cell. Additionally, incorporation significantly enhanced thermal stability, with cOSCs retaining over 80% their initial after 1000 h operation. steric effect altered molecular packing, thereby improving overall crystallinity. optimized nanoscale domain morphology resulted in more effective blend film, leading superior device performance. Moreover, chirality‐induced orbital angular momentum ratio triplet states, which key factor increasing photocurrent OSCs. delocalization electron wavefunctions driven by effects, it diminished Coulomb attraction between interfacial electron–hole pairs, efficient charge generation. This study provides valuable insights role chirality optimizing both stability

Language: Английский

In-situ passivation the defects both interfaces for n-i-p perovskite solar cells on regulatory electron-donating units of D-π-A dyes DOI
Rongxin Wang, Jiande Lin, Zhichao Lin

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161053 - 161053

Published: Feb. 1, 2025

Language: Английский

Citations

3
Coplanar Dimeric Acceptors with Bathochromic Absorption and Torsion‐Free Backbones through Precise Fluorination Enabling Efficient Organic Photovoltaics with 18.63% Efficiency DOI Creative Commons
Wei Liu, Weiwei Wu, Aleksandr A. Sergeev

et al.

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

Published: Jan. 20, 2025

Abstract Giant dimeric acceptors (GDAs), a sub‐type of acceptor materials for organic solar cells (OSCs), have garnered much attention due to the synergistic advantages their monomeric and polymeric acceptors, forming well‐defined molecular structure with giant weight high efficiency stability. In this study, first time, two new GDAs, DYF‐V DY2F‐V are designed synthesized OSC operation, by connecting one vinylene linker mono‐/di‐fluorinated end group on Y‐series monomers, respectively. After fluorination, both exhibit bathochromic absorption denser packing modes stronger intramolecular charge transfer effect torsion‐free backbones. Through precise DYF‐V‐based devices highest performance 18.63% among GDA‐based OSCs, outperforming its non‐fluorinated counterpart, DY‐V‐based ones (16.53%). Theoretical morphological results demonstrate that proper fluorination in strengthens intra/intermolecular interactions enhanced crystallinity, superior phase segregation, less energy disorder, which is beneficial fast exciton dissociation, rapid carrier transport, suppressed recombination. The work demonstrates GDAs rigid coplanar backbones effective broader photon harvesting, packing, robust stability OSCs.

Language: Английский

Citations

2
Biphenyl core boosts the photovoltaic performance of ether-bonded perylene diimides based nonfullerene acceptors DOI
Yanjie Sun,

Yinuo Wang,

Fengbo Sun

et al.

Dyes and Pigments, Journal Year: 2025, Volume and Issue: unknown, P. 112771 - 112771

Published: March 1, 2025

Language: Английский

Citations

2
Tailoring small-molecule acceptors through asymmetric side-chain substitution for efficient organic solar cells DOI Creative Commons

Lan Xie,

Dingding Qiu,

Xianghao Zeng

et al.

Science China Materials, Journal Year: 2025, Volume and Issue: 68(3), P. 860 - 867

Published: Feb. 13, 2025

Language: Английский

Citations

1
Indoor organic photovoltaics for low-power internet of things devices: Recent advances, challenges, and prospects DOI

Xingting Liu,

Shanlei Xu,

Bo Tang

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 497, P. 154944 - 154944

Published: Aug. 17, 2024

Language: Английский

Citations

6
Near-Infrared Light Driven Reversible Photoelectrochemical Bioassay by S-Scheme All-Polymer Blends for Acetylcholinesterase Activity Monitoring DOI
Ying Qin,

Runshi Xiao,

Wentao Xu

et al.

Nano Letters, Journal Year: 2024, Volume and Issue: 25(1), P. 514 - 521

Published: Dec. 19, 2024

Photoelectrochemical (PEC) biosensing, recognized for its heightened sensitivity, faces limitations in application vivo diagnosis due to the inefficiency of UV–visible light-driven photoactive materials nontransparent biological samples. In this study, we investigate potential an S-scheme all-polymer heterojunction comprising a prototype nonfullerene polymeric acceptor (PYIT) and carbon nitride develop near-infrared (NIR) PEC biosensor monitoring acetylcholinesterase activity human whole blood. The distinct molecular structure PYIT enables efficient light absorption NIR region, enhancing sensitivity functions via proton-dependent conversion mechanism between PYIT-OH PYIT, leveraging selective reversible chemical reactivity moieties backbone, eliminating need traditional intricate integration biorecognition unit. Our findings demonstrate direct correlation variations photoelectric performance concentration, showcasing exceptional selectivity, reversibility.

Language: Английский

Citations

4
Boosting the Efficiency and Mechanical Stability of Organic Solar Cells Through a Polymer Acceptor by Reducing the Elastic Modulus DOI Creative Commons
Yan Wang, Han Yu, Dan Zhao

et al.

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

Published: Feb. 13, 2025

Abstract Organic solar cells (OSCs) are regarded as one of the most promising flexible power sources due to their lightweight and properties, with improvement photovoltaic mechanical performance. To improve current density conversion efficiency (PCE), mPh4F‐TS (TS) PYSe2F‐T (PA) introduced into binary host, PM6/mPh4F‐TT (PM6/TT) third components. It is demonstrated that corresponding ternary devices, in both rigid achieved superior efficiencies (19.6%/17.7% for PM6/TT+TS, 19.2%/17.4% PM6/TT+PA) outperform counterparts (18.3%/16.4%). However, distinct differences performance observed between polymer acceptor small‐molecular (TS). The PM6/TT+PA significantly improved stability devices a lower elastic modulus 3.6 GPa, while PM6/TT+TS resulted opposite effect higher 5.5 GPa. Through in‐depth investigation, clear correlation modulus, crack density, active layer blends successfully established, revealing key role reducing enhancing OSCs. This study provides important guidance development high robustness.

Language: Английский

Citations

0
In Situ Surface Metal Passivation on AgBiS2 Nanocrystals for Trap-Reduced Inverted Solar Cells DOI
Bosen Zou, Dezhang Chen, Memoona Qammar

et al.

ACS Applied Energy Materials, Journal Year: 2024, Volume and Issue: 7(19), P. 8271 - 8277

Published: Sept. 30, 2024

Language: Английский

Citations

3
Shamrock-shaped Nonfullerene Acceptors Containing Nonhalogenated End Groups for High-Voltage Organic Photovoltaics DOI

Fuli Xie,

Xiangyu Li, Zongtao Wang

et al.

Dyes and Pigments, Journal Year: 2025, Volume and Issue: 235, P. 112616 - 112616

Published: Jan. 2, 2025

Language: Английский

Citations

0
Synergistically Halogenated and Methoxylated Thiophene Additive Enables High‐Performance Organic Solar Cells DOI Open Access
Xue Jiang, Peihao Huang,

Kaihuai Tu

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 7, 2025

Abstract Morphology control plays a key role for improving efficiency and stability of bulk heterojunctions (BHJ) organic solar cells (OSCs). Halogenation methoxylation are two separate ways successfully adopted in additives morphology optimization. In this work, these strategies combined together. A series halogenated methoxylated thiophenes is designed synthesized as volatile to the evolution BHJ morphology. Specifically, addition 2,5‐diiodo‐3,4‐dimethoxythiophene (MT‐I) prominently improves performance photostability OSCs. Computational simulations reveal noncovalent interactions MT‐I with active layer materials that corresponds inhibition excessive aggregation behavior PM6 Y6 during film‐forming process, facilitating favorable phase separation enhanced molecular stacking. Consequently, PM6:Y6‐based binary OSCs treatment achieves high PCE 17.93%. Furthermore, demonstrates broad feasibility across diverse high‐efficiency OSCs, leading superior photovoltaic (PCE over 18%). This study offers valuable guidance design application high‐performance future endeavors.

Language: Английский

Citations

0