TOPCon Solar Cells
Vacuum Coating Equipment & Expertise

The abbreviation TOPCon stands for Tunnel Oxide Passivated Contact. N-type TOPCon solar cells offer numerous advantages over PERC solar cells, such as lower degradation and higher efficiency.

We have further developed the sputtering technologies that have proven themselves many times in VON ARDENNE systems for the mass production of heterojunction solar cells.

As a result, we can also offer coating systems with a capacity of up to 1.2 gigawatts for customers in the TOPCon market, and with the same productivity .

The sputtering process allows the single-sided, full-surface coating of the solar cell rear side with tunnel oxide and a doped amorphous silicon layer in a highly productive inline process. The result is a significantly higher yield than with conventional PECVD and LPCVD processes.

Would you like to learn more? Then click on the content below or contact us directly.

Highest cell efficiencies

with high productivity

100% single-sided coating without wrap-around:

no back etching required

Entire TOPCon layer stack in one step:

silicon oxide & amorphous silicon

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Trade fairs
13.04.2023 - 14.04.2023
nPV Workshop Delft 2023

Delft, Technical University

08.05.2023 - 11.05.2023
SVC Washington 2023

Booth: 420
Washington (DC), Gaylord National Resort & Convention Center

24.05.2023 - 26.05.2023
SNEC Shanghai 2023

Booth: E4 / 310
Shanghai, New International Expo Center 

11.06.2023 - 16.06.2023
IEEE PVSC Conference Puerto Rico 2023

San Juan, Sheraton Puerto Rico Hotel & Casino

14.06.2023 - 16.06.2023
Intersolar Europe 2023

Booth: A2 / 514
München, Messe

Contact persons
Dr. Sebastian Gatz

Vice President Photovoltaics VON ARDENNE GmbH