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首页> 美国卫生研究院文献>Scientific Reports >Study on Nature-inspired Fractal Design-based Flexible Counter Electrodes for Dye-Sensitized Solar Cells Fabricated using Additive Manufacturing
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Study on Nature-inspired Fractal Design-based Flexible Counter Electrodes for Dye-Sensitized Solar Cells Fabricated using Additive Manufacturing

机译：基于分形设计的基于染料增材制造的染料敏化太阳能电池柔性对电极的研究

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Dye-Sensitized Solar Cells (DSSC) are third generation solar cells used as an alternative to traditional silicon solar cells. DSSCs are characterized by their durability, easy handling and ability to perform better under diverse lighting conditions which makes them an ideal choice for indoor applications. However, DSSCs suffer from several limitations including low efficiencies, susceptibility to electrolyte leakage under extreme weather conditions, and the need for expensive materials and fabrication techniques which limits their large-scale industrial applications. Addressing these limitations through efficient design and manufacturing techniques are critical in ensuring that the DSSCs transform from the current small-scale laboratory levels to sizeable industrial production. This research attempts to address some of these significant limitations by introducing the concepts of nature-inspired fractal-based design followed by the additive manufacturing process to fabricate cost-effective, flexible counter electrodes for DSSCs. The new conceptual fractal-based design counter electrodes overcome the limitations of conventional planar designs by significantly increasing the number of active reaction sites which enhances the catalytic activity thereby improving the performance. The fabrication of these innovative fractal designs is realized through cost-effective manufacturing techniques including additive manufacturing and selective electrochemical co-deposition processes. The results of the study suggest that the fractal-based counter electrodes perform better than conventional designs. Additionally, the fractal designs and additive manufacturing technology help in addressing the problems of electrolyte leakage, cost of fabrication, and scalability of DSSCs.
机译：染料敏化太阳能电池（DSSC）是第三代太阳能电池，可替代传统的硅太阳能电池。 DSSC的特点是耐用性，易处理性以及在各种光照条件下表现更好的能力，这使其成为室内应用的理想选择。但是，DSSC受到一些限制，包括效率低，在极端天气条件下容易发生电解液泄漏以及对昂贵的材料和制造技术的需求，从而限制了它们的大规模工业应用。通过有效的设计和制造技术解决这些局限性对于确保DSSC从当前的小型实验室水平转变为可观的工业生产至关重要。这项研究试图通过引入自然启发性的基于分形的设计概念，然后通过增材制造工艺来制造成本有效的，灵活的DSSC对电极，来解决其中的一些重大局限。新的基于分形的概念设计反电极通过显着增加活性反应位点的数量来克服传统平面设计的局限性，从而增加了催化活性，从而提高了性能。这些创新的分形设计的制造是通过经济有效的制造技术实现的，包括增材制造和选择性电化学共沉积工艺。研究结果表明，基于分形的对电极的性能优于传统设计。另外，分形设计和增材制造技术有助于解决电解质泄漏，制造成本和DSSC可扩展性的问题。

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