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CIGS/ CZTSS Photovoltaic Modules


Thin Film Solar Ultrasonic Spray Coating Systems


Uniform thin film coatings of absorber, buffer, and window layer chemistries are deposited in CZTSS and CIGS photovoltaic module production. Sono-Tek’s patented ultrasonic spray nozzle technology is fully integrated into all of our spray coating equipment. Uniform thin film coatings are deposited with very little overspray. Cost effective ultrasonic coating systems result in high cell efficiencies at a fraction of the cost of vapor deposition systems.

Ultrasonic spray systems for CIGS photovoltaic manufacturing feature:

  • 95% effective chemistry usage
  • Non-clogging repeatable performance
  • Low maintenance, high uptime
  • Uniform dispersion of nanosuspension particles
  • Unlimited width capability in high volume production equipment
  • Precision, cost effective full coating solutions
  • Decades of ultrasonic coating expertise in precision electronics and energy manufacturing
  • Proven effective in spray depositing oxide solutions and suspensions in worldwide thin film solar manufacturing plants

ExactaCoat and FlexiCoat Systems

Sono-Tek ultrasonic spray deposition equipment is used for coating the CIGS solar module layers indicated in the illustration below:

CIGS Deposition Layers

Sono-Tek ultrasonic nozzles are proven for spraying the following chemistries, among others:

  • CdS
  • CIGS
  • CZTSS
  • SnO
  • ITO
  • ZnO

(Left) FlexiCoat Inline System for Pilot Line to Mid Volume production and (right) ExactaCoat Benchtop R&D System


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