高等学校化学学报

高等学校化学学报

• 研究论文 • 上一篇    下一篇

[汤心颐先生诞辰100周年纪念专辑]调控交联核心尺寸提升准固态染料敏化太阳能电池聚合物电解质低温性能

林剑飞，李雅楠，王莹琳，张昕彤   

  1. 东北师范大学紫外光发射材料与技术教育部重点实验室
  • 收稿日期:2025-10-12 修回日期:2025-12-10 出版日期:2025-12-10 发布日期:2025-12-10
  • 通讯作者: 张昕彤 E-mail:xtzhang@nenu.edu.cn
  • 基金资助:
    国家自然科学基金（批准号：62074031, 52273236, U22A2078, 12374391）资助

Tailoring the Cross-Linking Core Size Toward Enhanced Low-Temperature Performance of Polymer Electrolytes for Quasi-Solid-State Dye-Sensitized Solar Cells

LIN Jianfei, LI Yanan, WANG Yinglin, ZHANG Xintong   

  1. Key Laboratory of UV-Emitting Materials and Technology of Chinese Ministry of Education, Northeast Normal University
  • Received:2025-10-12 Revised:2025-12-10 Online:2025-12-10 Published:2025-12-10
  • Supported by:
    Supported by the Natural Science Foundation of China(Nos.62074031, 52273236, U22A2078, 12374391)

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摘要： 本研究以不同尺寸的具有星形拓扑结构的交联单元（ETPTA、POSS和纳米氧化锆）为交联核心，与聚乙二醇二丙烯酸酯（PEGDA）进行化学交联，构建了三种聚合物网络（EP、PP和ZP），并将其用于准固态染料敏化太阳能电池（DSSCs）.研究结果表明，增大交联核心尺寸的策略能有效增加聚合物自由体积，降低其玻璃化转变温度，进而改善其电化学性能.在-40 ℃的低温环境下，ZP器件的光电转换效率相较于EP器件提升了37.4 %.这项研究为开发适用于高寒环境的准固态电化学器件提供了新颖有效的策略.

关键词: 准固态染料敏化太阳能电池, 聚合物电解质, 化学交联, 低温电化学性能

Abstract: This study employed cross-linking units with star-like topology of varying sizes (ETPTA, POSS, and nano-zirconia) as cross-linking cores to chemically cross-link with poly(ethylene glycol) diacrylate (PEGDA), constructing three polymer networks (EP, PP, and ZP) for application in quasi-solid-state dye-sensitized solar cells (DSSCs). The results demonstrate that the strategy of increasing the size of the cross-linking core effectively enlarges the free volume of the polymer, reduces its glass transition temperature, and consequently enhances its low-temperature electrochemical performance. At a low temperature of -40 ℃, the power conversion efficiency (PCE) of the ZP-based device shows a significant increase of 37.4% compared to the EP-based device. This research provides a novel and effective strategy for developing quasi-solid-state electrochemical devices suitable for high altitude environment.

Key words: Quasi-solid-state dye-sensitized solar cells, Gel polymer electrolytes, Chemical cross-linking, Low temperature electrochemical performance

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