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开发一种化二甲基聚合物供体作为客体,用于构建高性能三极式太阳能电池

Jianfeng Shao¹, Min Li², Guo Chen¹

¹School of Chemistry and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China.

|December 23, 2024

概括

研究人员开发了一种新的聚合物供体,F-1,使用化乙醇 (ffBT) 用于聚合物太阳能电池 (PSC). 使用F-1的三元器件实现了高功率转换效率 (PCE) 19.47%,改善了二元器件.

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:

乙 (BT) 对太阳能电池具有前景,但基于BT的聚合物捐赠者在基于聚合物太阳能电池 (PSC) 的聚合物太阳能电池 (PSC) 中表现出有限的效率.
开发高性能聚合物供体对于推进PSC技术至关重要.

研究的目的:

设计和合成一种新型的D-A聚合物捐赠剂 (F-1),其中包含化BT (ffBT) 接受器单元和化[1,2-b:4,5-b']二甲 (BDT-2Cl) 捐赠单元.
研究F-1对PSC的形态,能量水平和性能的影响,特别是在三元设备配置中.

主要方法:

合成D-A聚合物供体F-1的合成.
使用F-1,PM6和L8-BO制造三元聚合物太阳能电池.
膜形态,能量水平和光伏性能的表征.

主要成果:

在F-1中的ffBT单元降低了能量水平,提高了开放电路电压,并促进了非共价S··F相互作用,改善了分子平面性和结晶性.
将F-1纳入PM6:L8-BO混合物,导致改善了薄膜形态,相位分离和分子排列.
5% F-1 的三元装置实现了 19.47% 的功率转换效率 (PCE),超过了二元装置 (18.35%).

结论:

该研究表明,在基于BT的系统中使用非共价性构造锁开发高性能聚合物供体的可行策略.
构建三元太阳能电池提供了一种有效的方法,以进一步提高聚合物太阳能电池的性能.

关键词:

在 D-A 聚合物供体中.电子提取 - 提取电子非共价性构造锁非共价性构造锁聚合物太阳能电池是一种聚合物太阳能电池.三级太阳能电池是什么意思

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