Ultrasonic Spray Nozzles Proven for Graphene Nano-layer Thin Films
The inherent thinness and strength of graphene, combined with the ability to deposit thin nanolayers of material uniformly using ultrasonic spray, gives rise to enormous potential for graphene in thin film functional coatings for electronics, solar cells, and even protective layers using ultrasonic spray technology. The growing availability of graphite oxide enables research in many new technology areas.
Graphene is used in areas of research such as:
- Transistor fabrication for more efficient transistors than Si
- Flexible organic solar cell manufacturing
- Gas sensors with very high sensitivity
- Improving image characteristics in Transmission Electron Microscopy
- Protective inert coatings to prevent acid attack
- Providing a base layer for dopants to adhere to in silicon-based electronics
The benefits of ultrasonic nozzles in graphene spray processes include:
- Non-clogging atomized spray
- 95+% effective chemistry usage with very little overspray
- Ability to deposit thin nanolayers with high uniformity
- Repeatable proven spray process
120kHz and higher frequency nozzles have proven most successful. These higher frequency nozzles produce the smallest droplet sizes with effective deagglomeration of particles.
Sono-Tek’s ExactaCoat system is the perfect full coating solution for R&D spray processes, and is available as a tabletop enclosure or a fully inert standalone system. Our inhouse laboratory facilities enable customers to prove atomization and explore process enhancement with the assistance of our ultrasonic coating experts.