Overcoming Process Related Limitations in the Context of the Back Contacted polyZEBRA Solar Cell Technology
Year: 2025
Type: conference-paper
Abstract: TOPCon-based back-contacted silicon solar cells are a bridging technology between current TOPCon industrial standard and future fabrication of high efficient tandem technology. The polyZEBRA concept is such a back-contacted solar cell and promises a lean and cost-effective fabrication. In this contribution, the recent progress in technology optimization is reported, namely the influence of the base resistivity, of an improved screen-printing paste and of the AlOx deposition technique. The results indicate the usage of high ohmic base material, improved screen-printing paste and of atomic layer deposition for AlOx passivation. The combined learnings of those aspects lead to a 24.3% efficient champion cell.
Source: EU PVSEC
Authors: Linke, Jonathan, Rachdi, Lazhar, Veerman, Sebastian, Hoß, Jan, Lossen, Jan, Koduvelikulathu, Lejo Joseph, Buchholz, Florian
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7106300834
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