π‐Extension Assisted Macrocycle‐Encapsulated Non‐Fused Ring Electron Acceptors with Dual Charge Transporting Pathways for High‐Performance Organic Solar Cells DOI

Shuaishuai Shen,

Wenjing Liu, Hao Lu

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 23, 2025

Abstract Achieving compact and ordered charge transfer channels is essential for high‐performance non‐fused ring electron acceptors (NFREAs). Herein, this demonstrated that how the stacking arrangement of molecules with macrocycle encapsulated can be regulated via π‐extension, thus resulting in nearly planar molecular backbones, more dual transport characteristics. In RTT‐TT‐4F , these pronounced aggregation features endow its blend film appropriate phase separation, thereby reducing recombination, balancing carrier mobilities, significantly lowering energy loss OSCs. Consequently, ‐based OSCs achieve remarkable power conversion efficiencies 14.45% 19.76% binary ternary devices, respectively. Our findings provide insights into development NFREAs OSC applications.

Язык: Английский

Backbone Twisting and Terminal Overlapping via π‐Bridge Engineering for Highly Efficient Non‐Fused Ring Electron Acceptors with Balanced JSC‐VOC DOI Open Access
Wenjun Zhang,

Kexin Zhao,

Ningfang Zhang

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 16, 2025

Abstract High and balanced open‐circuit voltage ( V OC ) short‐circuit current density J SC are crucial for the efficiency of organic solar cells (OSCs). Generally, π‐bridge strategy serving as an effective molecular functionalization route with potential to balance ‐ pair. Herein, study designs synthesizes three non‐fused ring electron acceptors (NFREAs): 2T‐T‐EH , 2T‐T‐2EH 2T‐TT‐2EH by systematically regulating at size, number, position lateral alkyl chains. Introducing inner side chains result in twisted backbones, which elevated lowest unoccupied orbital (LUMO) energy levels, reduced loss, facilitating a higher . Single crystal analysis also reveals that π‐extending can effectively relieve congestion dual chains, leave more space terminal overlapping, promotes efficient charge transport enhancing Consequently, compromise between (0.916 V) (21.21 mA cm −2 is accomplished binary OSCs. The LUMO level provides serve third component ternary OSCs, achieving impressive power conversion (PCE) 19.07% D18:BTP‐eC9‐4F: ‐based device. These findings this suggest fine‐tuning π‐bridges simple method optimizing photovoltaic performance NFREAs, ensuring well‐balanced

Язык: Английский

Процитировано

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

Yinuo Wang,

Fengbo Sun

и другие.

Dyes and Pigments, Год журнала: 2025, Номер unknown, С. 112771 - 112771

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

2
Asymmetric non-fused-ring acceptors with thienoisochromene subunit: Synthesis and improved photoelectronic property enabled by dual-donor center skeleton enlargement and terminal chlorination DOI

Xumeng Wang,

Jiali Guo, Dawei Sun

и другие.

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160717 - 160717

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

0
Synergistic Molecular Engineering of Fully Non‐fused Ring Acceptors for Achieving Efficient Zigzag Charge Transport Channel and Low Non‐Radiative Voltage Loss DOI Open Access

Xiaoning Ru,

Zhan Huang,

Wenjing Sun

и другие.

Macromolecular Rapid Communications, Год журнала: 2025, Номер unknown

Опубликована: Фев. 20, 2025

Abstract Fully non‐fused ring acceptor (FNFRA) are potentially important for boosting the performance and lowering material costs of organic solar cells (OSCs). Despite their potential, FNFRA‐based OSCs have not yet matched fused partial counterparts due to limited molecular engineering research. In this work, by incorporating a synergistic strategy tailoring β ‐side chain end‐group FNFRA with cyclic “belt” simultaneously, named C6FT‐2F2Cl is constructed. Compared other symmetric FNFRAs, features shorter π–π stacking distance an efficient zigzag charge transport channel, leading enhanced balanced carrier mobilities, lower non‐radiative energy loss higher short‐circuit current density. The power conversion efficiency (PCE) C6FT‐2F2Cl‐based OSC reached 13.19%, which among best in devices. This work provides new valuable insights mechanism associated FNFRAs paves route materials design toward high‐performance low‐cost OSCs.

Язык: Английский

Процитировано

0
Optimizing Miscibility for Enhanced Photovoltaic Performance of Non-Fused Ring Electron Acceptors through Side-Chain Engineering DOI

Yahui Bai,

Linwei Xie,

Zhihui Lin

и другие.

Physical Chemistry Chemical Physics, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Side-chain engineering is employed to optimize the miscibility of non-fused ring electron acceptors and donors. The PBDB-T:A1C6-Cl blend film exhibits better finer phase separation, contributing higher device efficiency.

Язык: Английский

Процитировано

0
Optimizing Branching Linkers in Dimerized Acceptors for Enhanced Efficiency and Stability in Organic Solar Cells DOI Open Access
Yunpeng Wang, Yiwu Zhu, Hanjian Lai

и другие.

Small, Год журнала: 2025, Номер unknown

Опубликована: Март 10, 2025

Most high-performing dimerized acceptors are based on Y-series precursors with superior conjugated π-backbones. The utilization of branch-connected can fully leverage the four end groups to enhance molecular packing, thereby potentially improving both stability organic solar cells (OSCs) while maintaining high power conversion efficiency (PCE). Therefore, optimizing linker is critical realizing their potential in device performance. In this study, three synthesized and conjugation-break linkers branching direction systematically investigate effects different structures properties By introducing an appropriate flexible chain, favorable solubility, morphology achieved, which facilitates charge generation transport suppressing recombination. As a result, OSC dYTAT-C6-F exhibits significantly improved PCE 18.08%, highest among direction. Additionally, demonstrates T80 lifetime 1840 h. These results indicate that conjugation breakages tune aggregation, carrier mobility length further improves these characteristics. findings highlight significant engineering achieve outstanding

Язык: Английский

Процитировано

0
Efficient non-fused electron acceptor with C-shaped molecular geometry for photovoltaic application DOI
Kaijun Yuan, Chaoyi Wang,

Lijiao Ma

и другие.

Journal of Materials Chemistry A, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

A novel non-fused acceptor, AC2, with a C-shaped geometry and 3D stacking property, was designed for organic solar cells. AC2 exhibits efficient charge transport reduced energy loss, which broadens the design prospects acceptors.

Язык: Английский

Процитировано

0
Deuteration solid additive strategy for high-performance and thermally robust organic solar cells DOI
Bowen Li, Xia Hao, Ruijie Ma

и другие.

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 162655 - 162655

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

0
Carbazole-based conjugated polymers with enhanced UV hardness: promising electron donor materials for stable organic solar cells DOI
Екатерина А. Комиссарова, S. A. Kuklin, Petr M. Kuznetsov

и другие.

Mendeleev Communications, Год журнала: 2025, Номер 35(4), С. 413 - 416

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

0
π‐Extension Assisted Macrocycle‐Encapsulated Non‐Fused Ring Electron Acceptors with Dual Charge Transporting Pathways for High‐Performance Organic Solar Cells DOI

Shuaishuai Shen,

Wenjing Liu, Hao Lu

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 23, 2025

Abstract Achieving compact and ordered charge transfer channels is essential for high‐performance non‐fused ring electron acceptors (NFREAs). Herein, this demonstrated that how the stacking arrangement of molecules with macrocycle encapsulated can be regulated via π‐extension, thus resulting in nearly planar molecular backbones, more dual transport characteristics. In RTT‐TT‐4F , these pronounced aggregation features endow its blend film appropriate phase separation, thereby reducing recombination, balancing carrier mobilities, significantly lowering energy loss OSCs. Consequently, ‐based OSCs achieve remarkable power conversion efficiencies 14.45% 19.76% binary ternary devices, respectively. Our findings provide insights into development NFREAs OSC applications.

Язык: Английский

Процитировано

0