|本期目录/Table of Contents|

[1]郑海璐,余 杰,曾 诚*,等. 基于氰基噻唑端基的近红外电子受体构建高效有机太阳能电池 [J].武汉工程大学学报,2026,48(04):388-396.[doi:10.19843/j.cnki.CN42-1779/TQ.202601012]
　ZHENG Hailu,YU Jie,ZENG Cheng*,et al. Near-infrared electron acceptors based on cyano-thiazole end groups for high-efficiency organic solar cells [J].Journal of Wuhan Institute of Technology,2026,48(04):388-396.[doi:10.19843/j.cnki.CN42-1779/TQ.202601012]
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基于氰基噻唑端基的近红外电子受体构建高效有机太阳能电池
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
48
期数:
2026年04期
页码:
388-396
栏目:
现代大化工
出版日期:
2026-08-30

文章信息/Info

Title:
Near-infrared electron acceptors based on cyano-thiazole end groups for high-efficiency organic solar cells
文章编号:
1674 - 2869（2026）04 - 0388 - 09
作者:
郑海璐; 余 杰; 曾 诚*; 雷雨辰; 高建宏*
武汉工程大学材料科学与工程学院，湖北省光电与新能源材料工程技术研究中心，湖北 武汉 430205
Author(s):
ZHENG Hailu; YU Jie; ZENG Cheng*; LEI Yuchen; GAO Jianhong*
Hubei Engineering Technology Research Center of Optoelectronics and New Energy，School of Materials Science and Engineering，Wuhan Institute of Technology，Wuhan 430205，China
关键词:
氰基噻唑端基; 低成本; 近红外电子受体; 有机太阳能电池
Keywords:
cyano-thiazole end group;  low-cost;  near-infrared electron acceptor;  organic solar cell
分类号:
D430.50
DOI:
10.19843/j.cnki.CN42-1779/TQ.202601012
文献标志码:
A
摘要:
近红外光子的有效利用，对于提高有机太阳能电池（OSCs）的短路电流密度及整体光伏性能至关重要。设计并合成了一种强吸电子噻唑端基2-（4-（4-氰基-2-氟苯基）噻唑-2（3H）-亚基）丙二腈（FTCN），通过将其引入Y系列受体骨架，成功构筑了一种近红外电子受体（Y6-2FCN）。氰基取代的噻唑端基诱导产生强的分子内电荷转移效应（ICT），使Y6-2FCN的光学带隙达到1.23 eV，表现出优异的近红外光吸收能力。此外，FTCN分子通过四步简单反应获得，且每步收率均高于80%，展现出良好的低成本特性。同时，具有强缺电子能力的FTCN使得Y6-2FCN表现出较深的最低未占据分子轨道（LUMO）能级（-4.28 ?eV），结合其强的近红外吸收，与宽带隙聚合物给体D18共混后，制备的OSCs器件实现了5.06%的能量转换效率，其中开路电压为0.726? V，短路电流密度为18.55 ?mA/cm 2，填充因子为37.59%。该研究为开发兼具超窄带隙、低成本和高性能的有机光伏受体材料提供了一种可行的分子设计策略。
Abstract:
Effective utilization of near-infrared photons is crucial for improving the short-circuit current density （Jsc） and overall photovoltaic performance of organic solar cells （OSCs）. In this study，a strong electron-withdrawing thiazole terminal group， namely 2-（4-（4-cyano-2-fluorophenyl）thiazol-2（3H）-ylidene） malononitrile （FTCN），was designed and synthesized. By incorporating this moiety into the backbone of Y-series acceptors，a novel near-infrared electron acceptor （Y6-2FCN） was successfully constructed. The cyano-modified thiazole end group triggers strong intramolecular charge transfer （ICT） effect，endowing Y6-2FCN with a narrow optical bandgap of 1.23 eV and excellent near-infrared light absorption capability. Moreover，FTCN was synthesized through a facile four-step sequence with each step exhibiting a yield above 80%，showing great potential for low-cost preparation. Meanwhile，the highly electron-deficient FTCN enables Y6-2FCN to possess a deep lowest unoccupied molecular orbital （LUMO） level of -4.28?eV. Benefiting from its strong near-infrared absorption，Y6-2FCN was blended with the wide-bandgap polymer donor D18 to assemble OSC devices. The as-prepared OSCs deliver a competitive power conversion efficiency （PCE） of 5.06%，with an open-circuit voltage （Voc） of 0.726?V，a short-circuit current density （Jsc） of 18.55?mA/cm2，and a fill factor （FF） of 37.59%. This study offers a feasible molecular design strategy for the development of high-performance organic photovoltaic acceptors with ultra-narrow bandgap and low-cost characteristics.

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相似文献/References:

备注/Memo

备注/Memo:
收稿日期：2026-01-31
基金项目：国家自然科学基金（52003209）
作者简介：郑海璐，硕士研究生。Email：1262438612@qq.com；?并列第一作者：余 杰，本科生。Email：2966233594@qq.com
*通信作者：高建宏，博士，副教授。Email：gaojianhong26@wit.edu.cn；曾 诚，博士，讲师。Email：2446524484@qq.com
更新日期/Last Update: 2026-09-05