DYEING SALT CRYSTALS FOR OPTICAL APPLICATIONS

Inorganic materials can encapsulate organic dye molecules in a variety of ways Those considered here are simple inorganic salts that have ad sorbed, oriented, and overgrown dyes during growth from solution, whic h promise spectroscopic and photonic applications The Figure shows KH2 PO4 crystals in which dyes carrying sulfonate or phosphate groups have been incorporated in the {101} growth sectors (see also the cover of this issue).