Video: Demonstration of Static Dispense Spin Coating Using Large Volume of Ink
This video demonstrates the "brute force" technique to overcome borderline wetting problems. In this case we are using PEDOT:PSS on a glass substrate which is close to the wetting envelope (i.e. it will only just cover the surface) so has a large contact angle and tends not to spread across the whole substrate. There are a number of techniques that can be used to ensure even coverage (demonstrated in our spin coating guide) but here we demonstrate one of the simplest - just depositing a large amount of ink. It's rather inelegant but can also represent a very easy way to solve the problem (provided you have plenty of ink).
More spin coating techniques
View alternative static and dynamic spin coating techniques to overcome wetting issues in our spin coating guide, find our more by contacting our spin coating experts or buy a spin coater and try it in your lab.