中核替代和薄膜形成过程优化使得效率接近19% 全聚合物太阳能电池
Dingding Qiu1,2,3, Hao Zhang1,3, Chenyang Tian1,3
1CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, China.
Advanced materials (Deerfield Beach, Fla.)
|October 6, 2023
概括
优化聚合物受体结构可以提高全聚合物太阳能电池 (全PSC) 的性能. 新的昆素融合材料改善了分子聚合和薄膜形态,导致高功率转换效率 (PCE) 高达18.82%.
科学领域:
- 材料科学 材料科学 材料科学
- 有机电子 有机电子
- 太阳能光伏发电是如何实现的
背景情况:
- 分子相互作用和薄膜形成极大地影响全聚合物太阳能电池 (全PSC) 的性能.
- 聚合物受体的中心核心结构显著影响混合膜形态和设备效率.
研究的目的:
- 调查诺素 (Qx) 融合聚合物受体中中央核心置换对所有PSC性能的影响.
- 为了将分子聚合,分子间相互作用和膜形态与设备效率相关联.
主要方法:
- 三个Qx融合核心聚合物受体 (PQx1,PQx2,PQx3) 的合成,具有多种中央核心替代.
- 分子聚合和分子间相互作用的系统调节.
- 使用这些接受器的全聚合物太阳能电池设备的制造和表征.
主要成果:
- PQx3表现出有利的聚合和与PM6的中度相互作用,在二进制设备中实现了17.60%的功率转换效率 (PCE).
- 优化设备的PCE达到18.06%.
- 结合PYF-T-o的三元器件实现了18.82%的PCE.
- PM6:PQx3设备显示出高薄膜厚度耐受性,优越的稳定性,以及大规模应用的潜力 (16.23%PCE在1厘米2).
结论:
- 聚合物受体的中央核心结构优化对于高效的所有PSC至关重要.
- 控制薄膜形成过程是实现高性能和稳定的关键.
- 开发的PQx3材料显示了下一代全PSC技术的重大前景.
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