TOPCon solar cell based on aluminum contacts achieves slightly lower efficiency than silver-based counterpart – pv magazine International By Todd Lavergne TOPCon solar cell based on aluminum contacts achieves slightly lower efficiency than silver-based counterpart pv magazine International Brought to you by Google News. Read the rest of the article here Share this: Click to share on Facebook (Opens in new window) Facebook Click to share on X (Opens in new window) X Like this:Like Loading...