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Solution coatings
Dipping the substrate into the solution with coating material —> removing the substrate and allowing the solvent to dry
LB Film
Similar to SAM (amphiphilic)
Uses a Langmuir trough
Advantages and disadvantages of LB film
Advantages
Uniformity
Many alteration possibilities
Disadvantages:
Coating instability
Surface modifying additives (SMA)
Atoms/molecules added to the bulk material will rise to the top (forming the coating)
The driving force is the reduction of surface free energy
SMA application
Less use for ceramics due to the limited atomic mobility
More useful in polymers (block copolymer)
Example:
Block A: Compatible with bulk polymer
Block B: Affinity for surface (providing surface characteristics)