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化二乙醇溶剂添加剂使有机太阳能电池和高性能不透明/半透明模块的效率达到20%左右

Yibo Zhou^1,2, Wenyan Su², Zezhou Liang³

¹State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China.

National science review

|October 3, 2025

概括

研究人员开发了三种化二乙烯 (DPE) 溶剂添加剂,以优化有机太阳能电池 (OSC). 化DPE-Br添加剂改善了形态,将功率转换效率 (PCE) 提高到18.40%,并使模块达到20%以上的PCE.

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:

溶剂添加剂对于优化有机太阳能电池 (OSC) 的形态至关重要.
调整活性层形态直接影响功率转换效率 (PCE).

研究的目的:

开发用于OSCs的新型化二乙烯 (DPE) 溶剂添加剂.
调查化对DPE添加剂的影响及其对活性层形态和设备性能的影响.

主要方法:

三种DPE添加剂的合成:DPE-F,DPE-Cl和DPE-Br.
使用PM6:L8-BO作为DPE添加剂的活性层制造OSC.
添加物质的特性 (沸点,二极矩) 和它们对薄膜形态,电荷传输和设备性能的影响.

主要成果:

DPE添加剂的沸点和双极时刻随着素原子重量的增加而增加.
DPE-Br表现出增强的非共价相互作用,从而改善了分子间包装和电荷传输.
用DPE-Br处理的OSC实现了18.40%的PCE,超过DPE-F (17.73%) 和DPE-Cl (18.03%).
使用D18:L8-BO:BTP-eC9与DPE-Br的OSC实现了20%的PCE.
不透明和半透明模块实现了高的PCE分别为16.42%和10.50%.

结论:

化DPE衍生添加剂是一种优化OSC形态的有效策略.
该DPE-Br添加剂显著提高OSC性能和模块效率.
这种方法为开发高效的有机太阳能电池和模块提供了一个有希望的途径.

关键词:

化二乙烯乙烯的化二乙烯.形态学优化优化形态学优化有机太阳能电池和模块有机太阳能电池和模块功率转换效率的效率是功率转换效率.半透明的设备是半透明的.

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