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Photo-Induced Charge Carrier Recombination Kinetics in Small Molecule Organic Solar Cells and the Influence of Film Nanomorphology

机译:小分子有机太阳能电池中光诱导的电荷载流子复合动力学及膜纳米形态的影响

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摘要

Small molecule organic solar cells (SMOSCs) are at the forefront of organic solar cell research and have power conversion efficiencies that match the leading polymer: fullerene organic solar cells (>10%). However, the operating physics of SMOSCs is less understood than that of their polymer: fullerene counterparts. A stronger emphasis on understanding the working mechanisms of SMOSCs is thus required. This feature article aims to highlight methods for understanding a significant loss process in SMOSCs - charge carrier recombination - by using photo-induced transient optoelectronic techniques. These techniques make it is possible to probe the charge carrier density and lifetime in devices under working conditions. Employing these techniques alongside detailed morphological studies allows relationships between interfacial recombination processes, molecular packing and film nanomorphology to be obtained and can subsequently lead to more efficent devices being produced.
机译:小分子有机太阳能电池(SMOSC)处于有机太阳能电池研究的最前沿,其功率转换效率与领先的聚合物:富勒烯有机太阳能电池(> 10%)相匹配。但是,与它们的聚合物:富勒烯类似物相比,对SMOSC的操作物理学了解较少。因此,需要更加重视理解SMOSC的工作机制。这篇专题文章旨在重点介绍通过使用光感应瞬态光电技术来了解SMOSC中重大损耗过程(电荷载流子复合)的方法。这些技术使得在工作条件下探测器件中的载流子密度和寿命成为可能。将这些技术与详细的形态学研究一起使用,可以实现界面重组过程,分子堆积和膜纳米形态之间的关系,从而可以生产出更高效的器件。

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  • 来源
    《Advanced energy materials》 |2017年第10期|1601509.1-1601509.14|共14页
  • 作者单位

    NIMS, ICYS, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan|Natl Inst Mat Sci, Global Res Ctr Environm & Energy Based Nanomat Sc, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan;

    Barcelona Inst Sci & Technol, Inst Chem Res Catalonia ICIQ, Avda Paisos Catalans 16, E-43007 Tarragona, Spain|ICREA, Passeig Lluis Co 23, E-08010 Barcelona, Spain;

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