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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Impact of the Incorporation of Au Nanoparticles into Polymer/Fullerene Solar Cells
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Impact of the Incorporation of Au Nanoparticles into Polymer/Fullerene Solar Cells

机译：金纳米粒子掺入聚合物/富勒烯太阳能电池的影响

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摘要

The addition of small amounts of dodecylamine-capped Au nanoparticles into the active layer of organic bulk heterojunction solar cells consisting of poly(3-octylthiophene) (P3OT) and C60 was recently suggested to have a positive impact on device performance due to improved electron transport. This issue was systematically further investigated in the present work. Different strategies to incorporate colloidally prepared Au nanoparticles with a narrow size distribution into organic solar cells with the more common donor/acceptor system consisting of poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl C61-butyric acid methyl ester (PCBM) were pursued. Au nanoparticles were prepared with either P3HT or dodecylamine as ligands. Additionally, efforts were undertaken to incorporate nearly ligand-free Au nanoparticles into the system. Therefore, a procedure was successfully developed to remove the dodecylamine ligand shell by a postpreparative ligand exchange with pyridine, a much smaller molecule that can later partly be removed from solid films by annealing. However, for all types of nanoparticles studied here, the performance of the P3HT/PCBM solar cells was found to decrease with the Au particles as an additive to the active layer, meaning that adding Au nanoparticles is not a suitable strategy in the case of the P3HT/PCBM system. Possible reasons are discussed on the basis of detailed investigations of the structure, photophysics and charge transport in the system.
机译：最近有人建议将少量的十二烷基胺封端的Au纳米颗粒添加到由聚（3-辛基噻吩）（P3OT）和C60组成的有机体异质结太阳能电池的活性层中，由于改善了电子传输，对器件性能产生了积极影响。在当前工作中对该问题进行了系统的进一步调查。将具有窄尺寸分布的胶体制备的Au纳米粒子并入有机太阳能电池中的不同策略，其中更常见的供体/受体系统由聚（3-己基噻吩）（P3HT）和[6,6]-苯基C61-丁酸甲酯组成（PCBM）。用P3HT或十二烷基胺作为配体制备Au纳米颗粒。另外，努力将几乎不含配体的Au纳米颗粒掺入系统中。因此，成功开发了一种通过与吡啶的制备后配体交换来除去十二烷基胺配体壳的方法，吡啶是一种小得多的分子，以后可以通过退火从固体膜中部分除去。但是，对于此处研究的所有类型的纳米颗粒，发现随着Au颗粒作为活性层的添加剂，P3HT / PCBM太阳能电池的性能会下降，这意味着添加Au纳米颗粒不是适合的方法。 P3HT / PCBM系统。在详细研究系统的结构，光物理和电荷传输的基础上，讨论了可能的原因。

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