Thin Film Solar Deposition Systems

Uniform thin film coatings of absorber, buffer, and window layer chemistries are deposited in CIGS and CZTSS 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 deposition systems for 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

(Left) R&D: ExactaCoat Benchtop System and the Pilot Line to Mid Volume: FlexiCoat Inline System

Sono-Tek ultrasonic spray deposition equipment is available for coating the CIGS solar module layers indicated.

Sono-Tek ultrasonic nozzles are used to spray the following chemistries, among others:

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