Miscibility, Crystallinity, and Phase Development in P3HT/PCBM Solar Cells: Toward an Enlightened Understanding of Device Morphology and Stability
Miscibility, Crystallinity, and Phase Development in P3HT/PCBM Solar Cells: Toward an Enlightened Understanding of Device Morphology and Stability
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DOI：
10.1021/jz2014902
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发表时间：
2011-12-15
影响因子：
5.7
通讯作者：
Ade, Harald
中科院分区：
文献类型：
--
作者：
Collins, Brian A.;Tumbleston, John R.;Ade, Harald
有机太阳能电池效率的快速提高使这些设备成为人们关注的焦点，成为丰富电力的潜在来源。尽管取得了许多经验性进展，但仍然缺乏基本的理解。由于所需的三维纳米级形态，确定结构性能关系一直是一个重大挑战，并收敛的理解尚未出现。我们讨论了最常见的有机太阳能电池的特性描绘最近的主要进展。所报道的器件性能的大变化、观察到的矛盾形态以及潜在驱动力的确定需要解决。只有通过对材料特性和制造工艺的精细考虑，并结合更多地使用先进的表征技术，才能更深入地了解改进器件的路线图。我们还强调了最近发现的组件材料的部分结晶性，其对器件加工和寿命的影响，以及其作为稳定性的重要指标。
Rapid improvements in organic solar cell efficiency have brought these devices into the spotlight as a potential source of abundant electricity. Despite much empirical progress, fundamental understanding is still lacking. Due to the required three-dimentional nanoscale morphology, determining structure performance relationships has been a major challenge, and a convergent understanding has yet to emerge. We discuss recent major advances in delineating the characteristics of the most common organic solar cells. The large variations in device performance reported, the contradictory morphologies observed, and the determination of the underlying driving forces need to be resolved. Deeper understanding that can provide a roadmap to improved devices will only occur through refined consideration of material characteristics and fabrication procedures in conjunction with increased use of advanced characterization. We additionally highlight the recently discovered partial miscibility of the component materials, its influence on device processing and lifetime, and its emergance as an important indicator of stability.