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Electroplated Copper Metal Contacts on Perovskite Solar Cells
Solar RRL ( IF 6.0 ) Pub Date : 2021-07-22 , DOI: 10.1002/solr.202100381
Thibaud Hatt 1 , Özde Ş. Kabakli 1 , Patricia S. C. Schulze 1 , Armin Richter 1 , Stefan W. Glunz 1 , Markus Glatthaar 1 , Jan Christoph Goldschmidt 1 , Jonas Bartsch 1
Affiliation  

Electroplated copper contacts on small-area single-junction perovskite solar cells (PSCs) using an atomic layer deposited (ALD) Al2O3 masking layer on ITO are demonstrated for the first time. The photoconversion efficiency of ≈11% after manufacturing the Cu contacts confirms that PSCs can survive the wet-chemical plating process. From the successful realization of plated contact fingers, the creation of an electrical contact between the Cu electrode and the ITO on the FA0.75Cs0.25Pb(I0.8Br0.2)3 perovskite absorber is inferred. Furthermore, scanning electron microscopy (SEM) with energy-dispersive X-ray (EDX) analysis shows the formation of a compact interface between ITO and plated Cu. An additional plating approach, using self-passivated aluminum as mask, allows to produce well-defined 30 μm wide Cu contacts on the PSC. Such a plating process allows for plating a low-resistive Cu grid simultaneously on both sides of a perovskite silicon heterojunction tandem solar cell with TCO, independent of substrate size.

中文翻译:

钙钛矿太阳能电池上的电镀铜金属触点

首次展示了在 ITO 上使用原子层沉积 (ALD) Al 2 O 3掩膜层在小面积单结钙钛矿太阳能电池 (PSC) 上电镀铜触点。在制造铜触点后,约 11% 的光转换效率证实了 PSC 可以在湿化学电镀过程中幸存下来。从成功实现电镀接触指,在铜电极和 FA 上的 ITO 之间建立电接触0.75 Cs 0.25 Pb(I 0.8 Br 0.2 ) 3推断钙钛矿吸收体。此外,具有能量色散 X 射线 (EDX) 分析的扫描电子显微镜 (SEM) 显示 ITO 和镀铜之间形成了紧密的界面。使用自钝化铝作为掩模的额外电镀方法允许在 PSC 上产生明确定义的 30 μm 宽 Cu 触点。这种电镀工艺允许在具有 TCO 的钙钛矿硅异质结串联太阳能电池的两侧同时电镀低电阻 Cu 网格,而与基板尺寸无关。
更新日期:2021-09-09
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