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.

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

  • Designed to focus on reducing the J0,m value below the busbar and boosting adhesion.
  • Used as second layer as combination with Solamet® front side silver paste to further optimize cell performance through a double printing procedure.