Yuchao Zhang, Sisi Wang, Li Wang, Zhenyu Sun, Yuan-Chih Chang, Ran Chen, Catherine Chan, Kuninori Okamoto, Yiwei Ao, Dongliang Wang, Marwan Dhamrin, Tsuji Kosuke, Brett Hallam
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引用次数: 0
Abstract
As the photovoltaics industry approaches the terawatt (TW) manufacturing scale, the consumption of silver in screen-printed contacts must be significantly reduced for all cell architectures to avoid risks of depleting the global silver supply and substantial cost inflations. With alternative metallization techniques (e.g., plating) facing their own challenges for mass production, advancements in the mainstream screen-printing technology to accelerate the pace of silver reductions are urgently needed. This work presents a silver-lean screen-printed contact scheme, providing scope for substantial reductions in silver consumption based on existing industrial screen-printing capabilities. The initial testing of such a design leads to the fabrication of 24.04% efficient large-area TOPCon solar cells with 9 mg W−1 silver consumption compatible with existing soldering-based interconnection technologies, corresponding to a 25%rel reduction in silver usage compared to standard industrial screen-printed TOPCon solar cells. Upon further optimization in pattern designs and fabrication processes, this silver-lean design offers a promising pathway toward ultra-low silver consumption of less than 2 mg W−1 for screen-printed TOPCon solar cells without sacrificing efficiency.
Solar RRLPhysics and Astronomy-Atomic and Molecular Physics, and Optics
CiteScore
12.10
自引率
6.30%
发文量
460
期刊介绍:
Solar RRL, formerly known as Rapid Research Letters, has evolved to embrace a broader and more encompassing format. We publish Research Articles and Reviews covering all facets of solar energy conversion. This includes, but is not limited to, photovoltaics and solar cells (both established and emerging systems), as well as the development, characterization, and optimization of materials and devices. Additionally, we cover topics such as photovoltaic modules and systems, their installation and deployment, photocatalysis, solar fuels, photothermal and photoelectrochemical solar energy conversion, energy distribution, grid issues, and other relevant aspects. Join us in exploring the latest advancements in solar energy conversion research.