bilayer

https://doi.org/10.1351/goldbook.B00643
See: monolayer, multilayer
Source:
PAC, 1994, 66, 1667. 'Thin films including layers: terminology in relation to their preparation and characterization (IUPAC Recommendations 1994)' on page 1672 (https://doi.org/10.1351/pac199466081667)