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Updated: Jul 1, 2025

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调整聚合物脊柱共平面性和形状顺序,以实现高性能印刷全聚合物太阳能电池

Yilei Wu¹, Yue Yuan², Diego Sorbelli³

¹Department of Chemical Engineering, Stanford University, Stanford, CA, 94305-4125, USA.

Nature communications

|March 9, 2024

概括

使用比特亚结合剂的新型聚合物接受器设计显著提高了全聚合物太阳能电池 (全PSC) 的效率,达到16.4%. 这一进步使得高性能,可打印的太阳能电池具有更好的稳定性和加工条件.

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:

全聚合物太阳能电池 (全PSC) 与基于小分子接受器 (SMA) 的设备相比,提供了增强的稳定性.
所有PSC与解决方案加工技术兼容,这对于可扩展的制造至关重要.
开发高性能聚合物接受器是推进全PSC技术的关键.

研究的目的:

设计和合成一种新型的聚合物接受器,使用比特亚结合剂 (PY-BTz).
评估基于PY-BTz的所有PSC的性能,并与现有材料进行比较.
为了研究结构-财产关系,规范了增强的性能.

主要方法:

合成PY-BTz聚合物受体的合成.
全聚合物太阳能电池 (全PSC) 的制造和表征.
谱学和电化学分析以了解电子和结构性质.

主要成果:

PY-BTz比基于烯的对应物表现出更多的共平面和有序的形状.
基于PY-BTz的所有PSC的功率转换效率 (PCE) 为16.4%,超过PY-2T (9.8%).
溶液剪切全PSC在环境条件下显示PCE为14.7%,适合打印.

结论:

比蒂亚醇链接剂在聚合物受体中促进脊柱结合和平面化.
增强的电子特性,包括电荷移动性和减少重组,有助于高PCE.
开发的战略为可扩展,高性能全PSC制造提供了一条途径.

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