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纹理无机矿中间层增强有机太阳能电池的载体提取

Nan Zhang^1,2, Yidan An¹, Qin Yao³

¹Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong 999077, China.

ACS applied materials & interfaces

|April 24, 2025

概括

有机太阳能电池中的新型矿介层通过改善孔运输和电荷生成,显著提高了性能. 这种接口工程策略提高了功率转换效率和设备稳定性.

科学领域:

材料科学材料科学材料科学
能源科学能源科学
太阳能光伏发电是如何实现的

背景情况:

聚3,4-乙烯二氧化硫:聚乙烯硫酸盐 (PEDOT:PSS) 是有机太阳能电池 (OSC) 中常见的孔输送层 (HTL).
PEDOT:PSS的局限性包括电导率低和表面形态不理想,妨碍高效的孔挖掘和限制OSC性能.

研究的目的:

通过设计异质连接接口来提高有机太阳能电池 (OSC) 的性能.
调查宽带间隙矿 (CsPbBr3) 间层在改善电荷生成,提取和传输方面的多功能作用.

主要方法:

使用PEDOT:PSS和批量异质连接 (BHJ) 活性层之间的纹理CsPbBr3中间层制造先进的异质连接接口.
描述CsPbBr3中间层对孔运输,能量转移 (福斯特共振能量转移 - FRET) 和光载体生成的协同作用.
使用标准设备指标使用CsPbBr3中间层的OSC设备的性能评估.

主要成果:

该CsPbBr3中间层显著提高了孔挖掘和运输效率.
观察到协同效应,包括FRET和中间层的独立光载体生成.
基于PM6:Y6的OSC的功率转换效率 (PCE) 从16.80%提高到17.74%.
在修改后的OSC中,改善了光电流和填充因子 (FF).
该方法在最先进的PM6:BTP-eC9:L8-BO系统中显示出普遍性,达到PCE的19.02%.

结论:

该CsPbBr3介层作为一个多功能组件,改善OSC的接口特性.
这种接口工程策略为实现高性能有机太阳能电池提供了可行的途径.
该研究强调了矿介层在推进OSC技术方面的潜力.

关键词:

界面修改界面修改运输费运输费运输费运输费挖掘洞的方法挖掘洞的方法有机太阳能电池是有机太阳能电池.宽带间隙的矿是矿.

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