Laser Scribing of Photovoltaic Solar Thin Films: A Review
Laser Scribing of Photovoltaic Solar Thin Films: A Review
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DOI：
10.3390/jmmp7030094
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发表时间：
2023-05
影响因子：
3.2
通讯作者：
Farzad Jamaatisomarin;Ruqi Chen;Sajed Hosseini-Zavareh;S. Lei
中科院分区：
文献类型：
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作者：
Farzad Jamaatisomarin;Ruqi Chen;Sajed Hosseini-Zavareh;S. Lei
薄膜光伏技术的发展已成为太阳能电池技术领域内解决全球能源危机的有希望的解决方案。然而，从实验室规模过渡到大面积太阳能电池需要精确且高质量的划线，以实现所需的电压并减少欧姆损耗。激光划片通过最大限度地减少几何填充因子的下降、电阻损耗和分流形成，在保持效率方面显示出巨大的潜力。然而，由于激光诱导的光热效应，各种缺陷会引发并影响刻划凹槽的质量并削弱模块的效率。在这方面，人们进行了大量的研究来分析激光划片的几何填充因子、表面完整性和电气性能，以达到更高的功率转换效率。对光伏太阳能薄膜激光划片的全面回顾以划片质量为中心，分析了影响划片过程效率和可靠性的关键因素和挑战。本综述还涵盖了使用激光系统、参数和技术对各种类型的太阳能薄膜进行图案化以确定优化的激光烧蚀条件的最新进展。此外，还提出了未来提高薄膜激光划片质量和性能的潜在研究方向。
The development of thin-film photovoltaics has emerged as a promising solution to the global energy crisis within the field of solar cell technology. However, transitioning from laboratory scale to large-area solar cells requires precise and high-quality scribes to achieve the required voltage and reduce ohmic losses. Laser scribing has shown great potential in preserving efficiency by minimizing the drop in geometrical fill factor, resistive losses, and shunt formation. However, due to the laser induced photothermal effects, various defects can initiate and impact the quality of scribed grooves and weaken the module’s efficiency. In this regard, much research has been conducted to analyze the geometrical fill factor, surface integrity, and electrical performance of the laser scribes to reach higher power conversion efficiencies. This comprehensive review of laser scribing of photovoltaic solar thin films pivots on scribe quality and analyzes the critical factors and challenges affecting the efficiency and reliability of the scribing process. This review also covers the latest developments in using laser systems, parameters, and techniques for patterning various types of solar thin films to identify the optimized laser ablation condition. Furthermore, potential research directions for future investigations at improving the quality and performance of thin film laser scribing are suggested.