通过添加无形B←N嵌入聚合物作为第三个组件来提高全聚合物太阳能电池的光伏性能
Xueyan Tan1, Junyang Jian1, Xueqiong Zheng1
1College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China.
Macromolecular rapid communications
|August 14, 2023
概括
本研究介绍了一种全聚合物太阳能电池 (全PSC) 的新三元策略,使用无形B←N嵌入聚合物BN-Cl-2fT. 这种方法增强了宿主聚合物结晶,显著提高了光伏性能和所有PSC的功率转换效率.
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) 的三元策略通常使用具有与主体聚合物相似结构的客聚合物.
- 改善混合性和形态控制对于提高所有PSC的性能至关重要.
研究的目的:
- 为所有公共服务企业开发一种新的三元策略,使用结构上不同的无形和晶体聚合物.
- 研究一种无形B←N嵌入聚合物 (BN-Cl-2fT) 对晶体聚合物混合物 (PM6:PY-TT) 形态和性能的影响.
主要方法:
- 一种无形B←N嵌入聚合物的合成,BN-Cl-2fT.
- 使用PM6:PY-TT:BN-Cl-2fT混合物制造三元全PSC.
- 使用玻璃发生率广角X射线衍射 (GIWAXS) 来分析聚合物结晶和形态的表征.
- 设备性能测试用于评估短路电流密度 (JSC),填充因子 (FF) 和功率转换效率 (PCE).
主要成果:
- 由于BN-Cl-2fT的结构,无形BN-Cl-2fT和晶体宿主聚合物 (PM6和PY-TT) 之间可以实现出色的混合性.
- 添加10%重量的BN-Cl-2fT显著增强了宿主聚合物的结晶.
- 与二进制设备 (PM6:PY-TT:BN-Cl-2fT) 相比,三进制设备 (PM6:PY-TT:BN-Cl-2fT) 的 JSC (23.29 mA cm-2),FF (62.4%) 和 PCE (13.70%) 的性能得到改善.
结论:
- 在结构上不相似的无形聚合物可以有效地改善混合性并增强所有PSC中的宿主结晶.
- 这项工作提出了一种独特的方法,通过结合无形B←N嵌入聚合物来设计高性能全PSC.
- 这些发现为优化有机光伏设备的形态和性能提供了新的途径.
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