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

Conference · Wed Jul 03 04:00:00 EDT 2024

OSTI ID:2396643

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

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.

• Research Organization: National Renewable Energy Laboratory (NREL), Golden, CO (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
• DOE Contract Number: AC36-08GO28308
• OSTI ID: 2396643
• Report Number(s): NREL/PO-5900-88662; MainId:89441; UUID:bf6419a4-242d-402e-9860-697e569df4c4; MainAdminId:73033
• Country of Publication: United States
• Language: English

Related Subjects

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