SOLYWATT ROMANIA
RO EN

News

What is TOPCon? Explained simply, in 5 steps

· SOLYWATT ROMANIA

What is TOPCon? Explained simply, in 5 steps. Our new educational post explains the photovoltaic cell architecture behind the SOLYWATT ROMANIA project.

SOLYWATT cover on white: the title What is TOPCon? Explained simply, in 5 steps and a diagram of the layer stack - metal contact, doped polysilicon, tunnel oxide (yellow), silicon wafer. Labels in Romanian.

TOPCon stands for Tunnel Oxide Passivated Contact. It is a photovoltaic cell architecture in which the rear contact is passivated.

TOPCon in 5 steps

  1. What TOPCon means - a passivated contact on the back of the cell.
  2. The tunnel oxide - a very thin oxide layer that electrons can pass through.
  3. Doped polysilicon - the layer that collects the current.
  4. How the contact works - the metal does not touch the wafer directly at the contact areas.
  5. Why it matters to us - SOLYWATT ROMANIA plans to make TOPCon+ cells in its planned factory in Galati, with a capacity of 1.17 GW.

European manufacturing, local skills, research and development in Romania (Bucharest), clean energy.

Download the document (PDF, 6 pages, 0.7 MB, in Romanian)

← All news