Anti-reflective coatings are applied to reduce surface reflection and maximize cell efficiency in solar glass and silicon solar cell manufacturing. Sono-Tek ultrasonic spray systems are used to apply thin film nanocoatings of anti-reflection coating chemistries of Silicon Dioxide and Titanium Dioxide, and have been shown to increase cell efficiencies by 3-4%.

AR coatings help reduce the reflection of desirable wavelengths from front glass of substrate and allows more light to reach the semiconductor film layer to operate more efficiently, and are commonly used in Silicon solar cell manufacturing applications.

Anti-reflection layers are commonly made of:

• TiO2
• SiO2

Ultrasonic Spray Nozzles Feature:

• Up to 80% reduction in material consumption
• Reduced wasteful overspray and atmospheric contamination
• Minimal servicing and downtime
• Spray patterns that are easily shaped for precise coating applications
• Highly controllable spray that produces reliable, consistent results
• Non-clogging
• No moving parts to wear out
• Ultra-low flow rate capabilities, intermittent or continuous

Sono-Tek has stationary and reciprocating systems for depositing anti-reflection coating solutions. Ultrasonic spray systems are designed to integrate seamlessly with existing manufacturing lines.