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- W4380233695 abstract "Efficient metal contact formation is pivotal for the production of cost-effective, high-performance crystalline silicon (Si) solar cells. Traditionally, screen-printed silver (Ag) contacts on the front surface have dominated the industry, owing to their simplicity, high throughput, and significant electrical benefits. However, the high cost associated with using over 13-20mg/Wp of Ag can impede the development of truly cost-effective solar cells. Therefore, there is an urgent need to explore alternative, economically viable metals compatible with silicon substrates. This study reports on the application of a contact stack consisting of Ag, nickel (Ni), and copper (Cu) in Si solar cells. To prevent Schottky contact formation, Ag is implemented as a seed layer, while Ni and Cu form the metal bulk layer. The fabricated bi-layer stack without selective emitter exhibits a maximum efficiency of ~21.5%, a fill factor of 81.5%, and an average contact resistance of 5.88mΩ·cm for a monofacial PERC cell. Microstructure analysis demonstrate that the metals within the contacts remain distinct, and Cu diffusion into the silicon during the firing process is absent. Consequently, printed bi-layer contacts emerge as a promising alternative to Ag contacts, reducing the Ag consumption to below 2.5mg/Wp per cell without compromising overall efficiency." @default.
- W4380233695 created "2023-06-12" @default.
- W4380233695 creator A5011088946 @default.
- W4380233695 date "2023-06-11" @default.
- W4380233695 modified "2023-09-26" @default.
- W4380233695 title "Implementation of Nickel and Copper as Cost-Effective Alternative Contacts in Silicon Solar Cells" @default.
- W4380233695 doi "https://doi.org/10.22541/au.168650284.41453445/v1" @default.
- W4380233695 hasPublicationYear "2023" @default.
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