[DISPLAY]Optimization of slot die coating performance

Topic

Improved coating performance of slot die coater for roll-to-roll system

Slot Die

Design Details

  • Preliminary design of slot die and coating conditions using slot die coating theory.
  • Optimization of slot die nozzle design by flow analysis of slot die movement conditions
  • Flow visualization and coating performance quantification of slot die nozzle areas .
Design parameters for slot die

CFD Results

Determine the optimal shape and dimensions of the die nozzle that has the best coating thickness uniformity and does not cause coating defects.

2D VOF(Volume Of Fluid) flow simlation

Before design optimization

After design optimization

Source of featured image  : Yibo Tu et al.,’Slot-die coating fabrication of perovskite solar cells toward commercialization,’ Journal of Alloys and Compounds, Volume 942, 5 May 2023.