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带有近平面异质连接架构的双添加策略,协助对高效有机太阳能电池进行形态优化

Waqar Ali Memon¹, Yiwu Zhu¹, Shilong Xiong¹

¹Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China.

ACS applied materials & interfaces

|December 5, 2024

概括

使用3,5-二博 (DCBB) 和1,8-二多 (DIO) 的双添加剂策略显著提高有机太阳能电池 (OSC) 的性能和稳定性. 这种方法优化了形态,从而记录了功率转换效率,并改善了OSC设备的寿命.

科学领域:

材料科学材料科学材料科学
可再生能源可再生能源是可再生能源.
有机电子有机电子

背景情况:

有机太阳能电池 (OSC) 在实现高性能和稳定性方面面临挑战,原因是优化活性层形态的困难.
精确控制纳米级形态的供体-接受体混合物对于有效的电荷生成和运输至关重要.

研究的目的:

调查使用3,5-二博 (DCBB) 和1,8-二多 (DIO) 的双添加剂策略,以优化散装异质连接 (BHJ) 和准平面异质连接 (Q-PHJ) 的形态.
根据D18和BTP-eC9.9.评估这些添加剂对电力转换效率 (PCE),电荷传输和OSC运行稳定的影响.

主要方法:

使用D18供体和BTP-eC9受体材料制造BHJ和Q-PHJOSC.
通过使用双添加系统 (DIO + DCBB) 来优化活性层形态.
设备性能的表征,包括PCE,短路电流密度 (JSC) 和填充因子 (FF),以及稳定性测试.

主要成果:

双添加剂策略 (DIO + DCBB) 显著改善了活性层中的相分离和分子排序,抑制了过度聚合.
使用 DIO + DCBB 处理的 BHJ 和 Q-PHJ OSC 实现了分别为 17.77% 和 18.60% 的创纪录 PCE.
Q-PHJ OSCs表现出了特殊的保质性,在2000多小时后保留了80%的初始PCE,表现优于BHJ同行.

结论:

双添加剂策略在优化OSC形态方面非常有效,从而提高功率转换效率.
开发的Q-PHJ OSC表现出卓越的稳定性,使其成为实际应用和大面积制造的有希望的产品.
这项工作在开发可再生能源技术的稳定,高效的有机太阳能电池方面取得了重大进展.

关键词:

双重添加剂是双重添加剂.形态控制控制形态控制有机太阳能电池是有机太阳能电池.功率转换效率的效率是功率转换效率.准平面异面连接的异面连接.

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