- Enhances crucible performance in multi-crystalline silicon solar wafer production.
- Up to 4% higher yield per ingot.
- Enhanced cell efficiency by improved carrier lifetime.
- In-situ applicability, no CAPEX required.
- Fits to commercially available crucibles.
HeraGlaze© SiO2 diffusion barrier coating
The innovative HeraGlaze© coating is a leap in quality and yield for integrated PV-manufacturers. HeraGlaze© improves cell efficiency by presumably 0,1% points in average.
HeraGlaze© is a high purity, high density SiO2-barrier coating, which prevents thermally induced impurity transfers from the crucible surface into the Si-melt/ingot without increase of oxygen permeation during the crystallization process. The enhanced quality of the Si-melt/ingot results in improved carrier lifetime leading to significant higher cell efficiencies.