+**Thin films** are material layers, often just nanometers thick, engineered to impart new surface properties. They are vital in [Coating](/wiki/coating) applications and key to advancements in [Nanotechnology](/wiki/nanotechnology), enabling devices from optics to electronics. Their reduced dimension unlocks novel behaviors.
+## See also
+- [Deposition](/wiki/deposition)
+- [Substrate](/wiki/substrate)
+- [Materials Science](/wiki/materials_science)
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