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具有增强光发光的形态锁定宏循环受体,用于高效的有机太阳能电池

Wei Liu^1,2, Jun Yuan¹, Yijie Nai¹

¹College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, P. R. China.

Advanced materials (Deerfield Beach, Fla.)

|December 9, 2025

概括

循环联分子显著减少有机太阳能电池 (OSC) 中的能量损失. 这种分子设计增强了光发光,并为基于宏循环的设备实现了创纪录的17.1%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:

非辐射重组损失是有机太阳能电池 (OSC) 效率的一个主要障碍.
开发能够抑制这些损失的分子设计对于推进光伏技术至关重要.

研究的目的:

设计和合成循环 π 结合电子接受器,以尽量减少非辐射重组.
研究循环架构对光发光量子产量和电荷传输的影响.
使用宏循环接受器在有机太阳能电池中实现高功率转换效率.

主要方法:

合成循环结合分子 (RCM-C6,RCM-C5,RCM-C4) 和它们的线性类似物.
光发光量子产量测量以评估非辐射衰变抑制.
调整基链长度以控制分子包装和薄膜形态.
有机太阳能电池的制造和表征.

主要成果:

与线性类似物相比,循环分子的光发光量子产量显著增强 (>14%).
抑制高频振动模式将非辐射衰变通道降到最低.
系统调整基链克服了聚合问题,优化了形态和电荷传输.
基于宏观循环的有机太阳能电池实现了创纪录的功率转换效率17.1%.

结论:

宏循环联架构是抑制有机太阳能电池中非辐射重组的有效策略.
这种方法可以实现高效的电荷传输,从而实现设备的高性能.
该研究为设计高性能有机光伏材料建立了新的框架.

关键词:

高光发光量的量子产量一个宏观循环接受器.有机太阳能电池是有机太阳能电池.失去电压的电压损失.

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