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主要面向面向的烯二胺介层用于高性能有机太阳能电池

Zhihui Chen^1,2, Qi Li¹, Huijun Tang¹

¹State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Centre for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China.

Angewandte Chemie (International ed. in English)

|February 18, 2025

概括

研究人员通过控制二胺基 (PDI) 基阴极介层中的分子方向来提高有机太阳能电池 (OSC) 的性能. 这种新的方法可以提高电子传输和设备效率,而不会产生强烈的兴奋剂效应,从而提高设备的整体稳定性.

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:

阴极间层中的电子运输对于高性能有机太阳能电池 (OSC) 来说至关重要.
基于二胺 (PDI) 的传统中间层通常依赖于强烈的兴奋剂,这可能会限制性能和稳定性.
控制分子导向提供了一种潜在的途径来增强电荷传输.

研究的目的:

开发一种基于非离子二胺 (PDI) 的新型阴极介层,具有受控的分子方向.
调查偏好的面对面定向和受限制的兴奋剂对电子传输特性的影响.
为了提高有机太阳能电池的功率转换效率和稳定性.

主要方法:

通过点击化学将重的1-(2,5,8-trioxadec-10-yl) -1,2,3-triazole (TOT) 侧链纳入化PDI (PDIBr) 中,以创建PDIBr-TOT.
对分子导向 (面对面与边对面) 和兴奋剂效应的分析.
使用PDIBr-TOT作为阴极间层的OSCs的制造和表征.

主要成果:

由于TOT侧链,PDIBr-TOT间层表现出主要的面对分子取向.
新的中间层显示了可以忽略不计的兴奋剂效应,与传统的PDIBr-N不同.
通过高效的垂直电荷传输通道实现了更高的电子移动性,而面向导向则有助于实现这一目标.
与PDIBr-TOT集成的OSC实现了显著的功率转换效率19.52%,并提高了设备的稳定性.

结论:

在非离子 PDI 基阴极间层中控制面对面的分子方向是一种有效的策略,可以提高电子传输和OSC性能.
抑制的兴奋剂效应有助于提高设备的稳定性.
这种方法为设计用于未来有机太阳能电池开发的先进阴极介层提供了一个有希望的方向.

关键词:

阴极中间层是阴极之间的中间层.兴奋剂的影响兴奋剂影响面对面的导向面对面的导向有机太阳能电池有机太阳能电池烯二胺化物烯二胺化物

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