väriainemolekyylin
A väriainemolekyyli, or dye molecule, is a molecule that possesses the property of selective absorption of visible light. This selective absorption results in the appearance of color when the molecule is illuminated. The specific wavelengths of light that a väriainemolekyyli absorbs and transmits are determined by its electronic structure, particularly the arrangement of its electrons within conjugated systems and the presence of chromophores.
Chromophores are specific groups of atoms within the molecule that are responsible for the absorption of light.
The interaction between the väriainemolekyyli and light involves the excitation of electrons from a lower energy