High-Speed Slot Die Coating Line for Perovskite & Tandem Solar Panels – Fully Customizable Atmosphere Control

• Glovebox-integrated infeed (for moisture-sensitive coatings)
• Ultrasonic cleaning & plasma treatment
• Slot die coating head with active gap stabilization (air bearing optional)
• Multi-channel liquid delivery system (up to 4 materials)
• Nitrogen-purged drying chamber with uniform airflow
• In-line annealing station (hot plate or IR)
• Thickness & uniformity optical inspection
• Automated panel sorting (pass/fail)
• Central ESD-safe control system

This high-speed slot die coating line is optimized for next-generation photovoltaic technologies (perovskite, organic PV, tandem cells). The entire coating-to-drying path can be enclosed in a nitrogen atmosphere with O₂/H₂O < 1 ppm, preventing degradation of sensitive precursors.

The slot die features piezo-actuated gap control that responds in milliseconds to substrate waviness, ensuring ultra-smooth films (Rq < 5 nm). The line handles both rigid glass and flexible polymer sheets. Full customization is available for die shape (tapered, convex), solvent compatibility, and encapsulation lamination integration.

• Perovskite absorber layer coating (Pb/Sn-based inks)
• Spiro-OMeTAD or PTAA hole transport layer
• PCBM or C60 electron transport layer for OPV
• Transparent conductive oxide (TCO) hybrid coatings

We design the slot die geometry (straight, tapered, shimless, or multi-layer co-extrusion type), environmental enclosure (full glovebox or mini-environment), substrate heating/cooling platen, syringe pump (10 mL - 20 L capacity), and software integration with your existing scheduler. Custom colors, logos, and ergonomic height adjustments are available at no extra cost.

• Active gap stabilization - compensates for substrate bowing in real time
• Ultra-low dead volume (< 0.5 mL) - ideal for expensive perovskite precursors
• Automatic meniscus control - prevents air entrainment at high speeds
• In-line solvent vapor annealing option
• Full data traceability - 21 CFR Part 11 compliant (upon request)

• 24-month comprehensive warranty
• On-site cleanroom installation & validation
• Free process support for 2 years (including formula transfer)
• Virtual reality (VR) operator training
• Loaner die head during repair or customization

• Packing: All atmosphere-sensitive parts double-bagged with N₂ backfill; main machine in heavy-duty plywood case with humidity indicator
• Shipping: OOG (out of gauge) for glovebox-enclosed models; standard 40 ft HC for open models
• Lead time: 90 - 120 days (fully custom projects)