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首页> 外文期刊>Journal of nano research >Aluminium Nanoparticles Prepared by Ultrasonic Ablation Technique inside the Active Layer of Organic Solar Cell
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Aluminium Nanoparticles Prepared by Ultrasonic Ablation Technique inside the Active Layer of Organic Solar Cell

机译：超声烧蚀技术在有机太阳能电池活性层内部制备铝纳米颗粒

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摘要

In the present work, chemical-free aluminium nanoparticles (Al NPs) have been incorporated inside active layer of organic solar cell (OSC) using a new ultrasonic ablation technique, by which the Al NPs have been physically prepared in 1,2-dichlorobenzene (DCB) as a solvent for preparing solar cell active layer. The concentration of Al NPs inside active layer can be increased by increasing the volume of DCB-Al NPs and, also, by increasing the ultrasonication time applied upon DCB-Al NPs mixture. The prepared Al NPs are incorporated inside the common P3HT: PCBM active layer without accumulation and with low distribution. Optical absorption of the P3HT: PCBM active layer is improved through plasmon resonance induced by Al NPs inside active layer. The fill factor (FF) is, also, improved by the presence of Al NPs which facilitate charge carrier transfer in the P3HT: PCBM solar cell. The FF can be reduced due to presence of Al bulk pieces inside active layer. However, these Al bulk pieces are dissociated under the effect of ultrasonic irradiation for longer time. Optical absorption as well as charge carrier transfer induced by Al NPs are the responsible to increase performance parameters of the P3HT: PCBM solar cell under increasing the concentration of Al NPs inside OSC. As a conclusion, the incorporation of Al NPs inside P3HT: PCBM solar cell induces a significant improvement of the FF by 35% and consequently, the PCE is improved with about 39%.
机译：在目前的工作中，采用新的超声烧蚀技术将不含化学物质的铝纳米颗粒（Al NPs）掺入有机太阳能电池（OSC）的活性层内，通过该技术，可以在1,2-二氯苯中物理制备Al NPs（ DCB）作为制备太阳能电池活性层的溶剂。可以通过增加DCB-Al NPs的体积，以及通过增加施加在DCB-Al NPs混合物上的超声时间来增加活性层中Al NPs的浓度。所制备的Al NPs掺入到常见的P3HT：PCBM活性层中，而不会累积且分布低。 P3HT：PCBM活性层的光吸收通过活性层内部Al NP引起的等离子体激元共振得以改善。 Al NPs的存在也改善了填充因子（FF），Al NPs促进了P3HT：PCBM太阳能电池中载流子的转移。由于在活性层内部存在Al块状体，因此可以减小FF。然而，这些Al块状物在超声辐射的作用下解离更长的时间。 Al NPs引起的光吸收以及电荷载流子转移是在OSC内部增加Al NPs浓度的情况下增加P3HT：PCBM太阳能电池性能参数的原因。结论是，在P3HT：PCBM太阳能电池中掺入Al NPs可以将FF显着提高35％，因此PCE可以提高39％。

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