Development and Reliability of Screen-Printable Fire-Through Cu Paste for Passivated Contact Solar Cells

Suchismita Mitra, Steve Johnston, Harvey Guthrey, Peter Hacke, Ruvini Dharmadasa, Thad Druffel, Kevin Elmer, Apolo Nambo, Dustin Williams, Ajay Upadhyaya, Vijaykumar Upadhyaya, Ajeet Rohatgi, Paul Stradins

Research output: NRELPoster

Abstract

We present the development of copper (Cu) paste which has been screen printed on Selective Emitter-Passivated Emitter Rear Contact (SE-PERC) solar cells. This paste can also be applied to Tunnel Oxide Passivated Contact (TOPCON) solar cells due to its fire-through nature. Champion PERC cells have achieved ....efficiency with ...parameters . Accelerated testing to investigate reliability performance of the SE- PERC mini-modules were carried out in damp heat chamber with 85oC and 85% humidity. The devices were found to be operational even after 1,500 hours. Devices with screen printed Ag contacts on the front side have been studied in parallel to the Cu contacts for comparison.
Original languageAmerican English
PublisherNational Renewable Energy Laboratory (NREL)
StatePublished - 2024

Publication series

NamePresented at the Photovoltaic Reliability Workshop (PVRW), 27-29 February 2024, Lakewood, Colorado

NREL Publication Number

  • NREL/PO-5900-88662

Keywords

  • copper paste
  • passivated emitter
  • photovoltaic
  • PV
  • rear contact
  • SE-PERC
  • selective emitter
  • solar cells
  • TOPcon
  • tunnel oxide

Fingerprint

Dive into the research topics of 'Development and Reliability of Screen-Printable Fire-Through Cu Paste for Passivated Contact Solar Cells'. Together they form a unique fingerprint.

Cite this