Reducing Losses in Perovskite Large Area Solar Technology: Laser Design Optimization for Highly Efficient Modules and Minipanels
Reducing Losses in Perovskite Large Area Solar Technology: Laser Design Optimization for Highly Efficient Modules and Minipanels
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DOI：
10.1002/aenm.202103420
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发表时间：
2022-02-05
影响因子：
27.8
通讯作者：
Di Carlo, Aldo
中科院分区：
文献类型：
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作者：
Castriotta, Luigi Angelo;Zendehdel, Mahmoud;Di Carlo, Aldo
钙钛矿太阳能时代仅在10年的研究中就展示了25.5%的效率，达到了Si和GaAs等其他光致发光技术的性能水平，显示出潜在的低成本制造和工艺多功能性。然而，这些结果仅在小面积电池上实现，有效面积等于或低于0.1 cm（2）。钙钛矿太阳能技术的升级发展需要使用额外的工艺来减少大面积的损失;因此，激光加工成为将连接的电池设计成模块的必要条件。在这项工作中，通过优化激光器设计，建立几何填充因子，电池面积宽度和P1-P2-P3激光参数之间的关系，降低了钙钛矿太阳能电池模块中的电池到模块的损耗。将工艺从2.5 x 2.5 cm（2）放大到10 x 10 cm（2），在2.25 cm（2）和48 cm（2）的有效面积上分别实现了18.71%和17.79%的效率，当从微型模块到模块尺寸缩放时，只有5%的相对损失。在20 x 20 cm（2）上制造的微型板在192 cm（2）的有效面积上显示出11.9%的稳定效率和2.3 W，是迄今为止在该尺寸下文献中报道的最高效率。
The perovskite solar era has demonstrated 25.5% efficiency in only 10 years of research, reaching the performance levels of other photovoltaics technologies such as Si and GaAs, showing potentially low-cost manufacturing and process versatility. However, these results are achieved only on small area cells, with an active area equal or lower to 0.1 cm(2). The upscaling development of perovskite solar technology requires the use of additional processes to reduce losses encountered for large areas; for this reason, laser processing becomes necessary to design connected cells into modules. In this work, cell-to-module losses in perovskite solar modules are reduced by optimizing the laser design, establishing a relationship between geometrical fill factor, cell area width, and P1-P2-P3 laser parameters. Upscaling the process from 2.5 x 2.5 to 10 x 10 cm(2) an efficiency of 18.71% and 17.79% is achieved on active area of 2.25 and 48 cm(2) respectively, with only 5% relative losses when scaling from to minimodule to module size. A minipanel is fabricated on 20 x 20 cm(2), showing 11.9% stabilized efficiency and 2.3 W on an active area of 192 cm(2), among the highest reported in literature so far at this size.