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用纳米带增强的光电子设备用于增强的孔提取

Thomas J Macdonald^1,2,3, Adam J Clancy^2,4, Weidong Xu¹

¹Department of Chemistry and Centre for Processable Electronics, Imperial College London, London W12 0BZ, United Kingdom.

Journal of the American Chemical Society

|December 17, 2021

概括

纳米丝带 (PNR) 增强光电子中的孔提取. 这项研究通过实验验证PNR

科学领域:

材料科学
纳米技术
光电子产品

背景情况:

纳米丝带 (PNR) 预计对光电子有很好的功能性质.
这些特性包括高激子结合能量,可调节的带隙和超高的孔移动性.
由于PNR的近期隔离,对这些特性及其应用的实验验证是有限的.

研究的目的:

通过实验验证PNR的理论增强的洞移动性.
证明PNR在改善光电子应用中挖洞的潜力.
调查PNR作为矿太阳能电池 (PSC) 中的电荷选择性中间层的性能.

主要方法:

具有PNR间层的平面p-i-n (倒置) 矿太阳能电池 (PSC) 的制造和表征.
使用空间电荷有限电流 (SCLC) 孔式装置来测量孔的移动性和导电性.
使用光发光和短暂吸收光谱分析载体提取动态的装置.

主要成果:

PNR显著增强了从甲基酸 (MAPbI₃) 矿到聚三胺的孔提取.
使用PNR间层的反向PSC实现了填充系数>0.83和效率>21%,与单晶MAPbI₃设备相比.
此外,PNR间层还提高了无甲PSC的性能,提高了SCLC设备的孔移动性和导电性.

结论:

这项工作提供了第一个实验证据,证明PNR预测的特性可以提高光电子设备的性能.
PNR作为有效的电荷选择中间层,增强通用光电子应用中的载体提取.
这些发现突显了PNR对包括PSC在内的下一代光电子设备的发展潜力.

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