侧链工程绝缘聚合物分布使高性能内在可拉伸的有机光伏成为可能
Shuyang Sang1, Haozhe He2, Kangkang Zhou3
1MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems, School of Energy & Power Engineering Chongqing University, Chongqing, 400044, China.
Advanced materials (Deerfield Beach, Fla.)
|October 28, 2025
概括
本研究介绍了使用绝缘聚合物添加剂的内在可拉伸有机光伏 (is-OPV) 的分子设计. 这一突破提高了效率和机械性能,为先进的可穿戴电子产品铺平了道路.
科学领域:
- 材料科学 材料科学 材料科学
- 有机电子 有机电子
- 聚合物科学 聚合物科学
背景情况:
- 本质上可拉伸的有机光伏 (is-OPV) 在功率转换效率 (PCE) 和可拉伸性之间存在权衡,这阻碍了它们在可穿戴设备中的使用.
- 开发在机械应变下保持高效率的is-OPV对于下一代可穿戴能源技术至关重要.
研究的目的:
- 提出一个分子设计策略,使用侧链工程绝缘聚合物作为多功能添加剂,同时提高is-OPV的电子和机械性能.
- 建立在is-OPV中绝缘聚合物添加剂的基本设计原则,以优化性能和耐用性.
主要方法:
- 使用聚甲酸 (PMMA) 和聚甲酸 (PBMA) 作为绝缘聚合物添加剂.
- 协同控制PMMA与PM6/Y6捐赠元件的兼容性,链扩散性和对接位置.
- 分析PMMA在PM6捐赠体内的分布,以创建双重压力消散网络和高效的电荷运输通路.
主要成果:
- 含有10%重量PMMA的设备实现了创纪录的19.01%的PCE,而20%重量PMMA的设备保留了18.53%的PCE.
- 使用20%重量PMMA的可拉伸器件显示10.8%的骨折应变,并在100次拉伸周期 (10%应变) 后保持87%的PCE.
- 与控制装置相比,绝缘聚合物添加剂显著提高了机械强度和PCE保留率.
结论:
- 使用绝缘聚合物添加剂的分子设计策略为高性能可拉伸电子产品提供了通用材料平台.
- 对添加剂微/纳米尺度分布的分子控制可以同时优化is-OPV中的电子和机械性能.
- 这种方法对于需要高效率和耐用性的可穿戴能源技术尤其有希望.
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