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首页> 外文期刊>ACS applied materials & interfaces >Solution-Processed Fe3O4 Magnetic Nanoparticle Thin Film Aligned by an External Magnetostatic Field as a Hole Extraction Layer for Polymer Solar Cells
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Solution-Processed Fe3O4 Magnetic Nanoparticle Thin Film Aligned by an External Magnetostatic Field as a Hole Extraction Layer for Polymer Solar Cells

机译：溶液处理的Fe3O4磁性纳米颗粒薄膜，通过外部静磁场对准，作为聚合物太阳能电池的空穴提取层

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摘要

We report, for the first time, the effect of a solution-processed Fe3O4 magnetic nanoparticle (MNP) thin film and a Fe3O4 MNP thin film aligned by an external magnetostatic field, used as a hole extraction layer (HEL), respectively, in polymer solar cells (PSCs). The thin film of a Fe3O4 MNP shows a smoother surface, better transparency, and higher electrical conductivity than that of a poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PE-DOT:PSS) thin layer. Moreover, the thin film of a Fe3O4 MNP aligned by an external magnetostatic field possesses an enhanced electrical conductivity and lower internal series resistance, thus leading to greater than 13% enhancement in the power conversion efficiency of PSCs than those using a PEDOT:PSS thin film. It was also found that PSCs incorporated with a Fe3O4 MNP shows better stability compared with those using PEDOT:PSS as an anode buffer layer. These results demonstrated that utilization of a Fe3O4 MNP as a HEL in PSCs blazes a trail to achieve highly efficient and long-time-stable devices.
机译：我们首次报道了溶液处理的Fe3O4磁性纳米颗粒（MNP）薄膜和通过外部静磁场对准的Fe3O4 MNP薄膜分别在聚合物中用作空穴提取层（HEL）的效果太阳能电池（PSC）。与聚（3,4-乙撑二氧噻吩）：聚（苯乙烯磺酸盐）（PE-DOT：PSS）薄层相比，Fe3O4 MNP薄膜显示出更光滑的表面，更好的透明度和更高的电导率。此外，通过外部静磁场对准的Fe3O4 MNP薄膜具有增强的电导率和更低的内部串联电阻，因此与使用PEDOT：PSS薄膜的PSC相比，其功率转换效率提高了13％以上。还发现，与使用PEDOT：PSS作为阳极缓冲层的PSC相比，掺入Fe3O4 MNP的PSC表现出更好的稳定性。这些结果表明，在PSC中将Fe3O4 MNP用作HEL可以开创一条高效且长期稳定的设备的道路。

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