Alaminatedpackagingmaterialis composed of a thermoplasticmaterialoutermost layer, a paperbasematerial layer, a conductivebarrierlayerand a heatsealinginnermost layer.
Gallium-nitride is manmade and not found in nature, and historically, LEDs are made by growing a gallium-nitride layer on top of a basematerial, which is typically sapphire or, more recently, silicon carbide.
Because smart skins are grown by depositing layer upon layer, the base coating can be used as a foundation for adding other ingredients to tailor the material's properties for specific purposes.