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Video: Demonstration of Dynamic Dispense for Spin Coating

This video demonstrates the dynamic dispense of an ink onto a spinning substrate. By using a dynamic dispense it's possible to get even coverage using much lower volumes of solution than using a static dispense so long as the wetting properties are suitable.

In this example we demonstrate using PEDOT:PSS AI 4083 typically used as a hole transporting layer but the technique is commonly used with a large variety of inks and photoresists.

Here the substrate is spun to 6000 rpm and the solution (a quantity of 30-40 μl) is dynamically deposited (i.e. during the spinning process) but the process works well for spin coating speeds of around 500 rpm and upwards.

Additional Information

For more information view our full list of fabrication videos or contact our technical team.


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