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

Product Specification

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

Composition of Production Line

• 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

Product Description

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.

Technical Parameters

Application

• 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

Customization

✅ Unlimited customization – 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.

Feature

• 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)

Support and Services

• 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 and Shipping

• 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)

FAQ

Q1: Can the line coat both sides of the panel simultaneously?
A: Yes – we offer a “flip & coat” module or a true two-head opposed configuration (both fully customizable for speed synchronization).
Q2: What is the typical defect density for perovskite coating?
A: Under cleanroom + nitrogen environment, defects > 50 µm are less than 5 per m² – we can optimize further with customized die cleaning cycles.
Q3: How long does it take to change from one coating material to another?
A: With our quick-connect fluid panel and integrated purge sequence, changeover takes 15 minutes – customizable to fully automated cleaning recipe.
Q4: Do you offer a pilot-size version for R&D?
A: Absolutely. We customize table-top slot die coaters for 300×300 mm substrates with all the same atmosphere controls – ideal for scaling up to production.