Solamet® Front Side Silver Pastes

Newest Generation Front Side Silver Paste Delivers Superior Efficiency for P-type Solar Cells

DuPont™ Solamet® PV19x photovoltaic metallization pastes are the newest in a series of advanced front side silver pastes designed to deliver superior efficiency for p-type solar cells and cost savings from higher yields.

New DuPont™ Solamet® PV19x front side silver paste delivers superior efficiency for P-type solar cells.

DuPont™ Solamet® PV19x features include:

  • Demonstrates efficiency gains up to and exceeding 0.15% compared to Solamet® PV18x paste, the current industry benchmark.
  • The first product in the series, Solamet® PV19A paste enables fine line printing down to 30 microns.
  • Improves line aspect ratios to minimize the shading effect on the surface of the solar cell through excellent paste transfer, while maintaining superior electrical conductivity to boost efficiency.
  • Innovative chemistry enables extreme Lightly Doped Emitters (LDE) by reducing contact resistance by an order of magnitude for further electrical improvement
  • Robust processing latitude improves production yields
  • Tighter cell distribution has increased high-efficiency binning to more than 17.8% to support >260 watts of power output*
  • Improves high efficiency cell production yield from 93% to 98.5%*

DuPont continues setting the pace of innovation in the solar industry with more than 110 new Solamet® photovoltaic metallization paste products introduced over the last 7 years, and it is actively developing variants of the new Solamet® PV19x series aimed at boosting solar cell efficiencies even further.

* Based on customer test results 

DuPont™ Solamet® PV18x photovoltaic metallization pastes

The Solamet® PV18x series contains our proprietary Tellurium technology, which is only licensed and available from DuPont.  Solamet® PV18x expands productivity further than previous front side silver pastes by delivering greater efficiency from even better contact to LDEs with less material required. We continue to innovate the Solamet® PV18x technology to achieve lower recombination losses, lower laydown and improved fine line, to support further reductions in cost of ownership of multi-crystalline cells with higher efficiency results.

DuPont™ Solamet® PV18x features include:
  • Reduced recombination at Ag/Si interface
  • Improved fine line capability
  • Enhanced adhesion performance
  • Good contact performance on higher Rsheet emitter to sustain fill factor
  • Improved grid line resistance
  • Stable on the screen, operator friendly


Silver Pastes Designed for Double or Multiple Printing

DuPont™ Solamet® PVD1x, PVD2x silver paste

  • 1st layer designed to contact ultra lightly doped emitters with excellent fine line printability.
  • 2nd layer designed to be compatible with 1st layer metallization and have excellent solder adhesion. Floating and fire through solutions available to optimize electrical cell performance based on customer double printing process conditions.