通过非化环聚合物受体来调节结晶行为,用于高性能三级有机太阳能电池
Tingting Wang1, Wenliang Li1, Xiaohong Zhao1
1College of Chemistry and Chemical Engineering/Film Energy Chemistry For Jiangxi Provincial Key Laboratory (FEC)/Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, Nanchang, China.
Small (Weinheim an der Bergstrasse, Germany)
|February 18, 2026
概括
在有机太阳能电池中添加非化环聚合物接受器 (PW1),可以改善活性层结晶,提高功率转换效率 (PCE) 和稳定性. 这一策略提高了性能和设备的寿命.
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:
- 控制活性层结晶对于有机太阳能电池 (OSC) 的性能和稳定性至关重要.
- 非化环聚合物接受器很少被用作三元添加剂来调整结晶性.
研究的目的:
- 研究一种基于的新型非化环聚合物受体 (PW1) 作为OSCs中的三元组件的影响.
- 为了提高基于PM6:BTP-eC9的有机太阳能电池的功率转换效率 (PCE) 和稳定性.
主要方法:
- 合成PW1,一种基于的非化环聚合物受体.
- 将PW1纳入PM6:BTP-eC9混合物中,形成一个三元系统.
- 薄膜形态的表征,热稳定性,能量水平和光学特性.
- 设备制造和性能测试,包括PCE,填充因子 (FF) 和存储稳定性.
主要成果:
- PW1表现出良好的热稳定性 (Td = 343°C) 和与主体混合物的混合性.
- PW1充当了兼容性修饰剂,抑制了BTP-eC9.9的聚合和控制结晶.
- 与二进制设备 (18.61%) 相比,使用3重%PW1的三进制设备实现了更高的PCE (19.50%).
- 观察到更好的电荷提取,更长的载体寿命,平衡的移动性,减少重组,以及增强的存储稳定性 (T80从415到983小时).
结论:
- PW1有效调节有机太阳能电池中的活性层结晶.
- 三元策略显著提高了OSC的效率和运营稳定性.
- 非化环聚合物接受器显示出作为高性能有机光伏的有效添加剂的希望.
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