Hybrid sol-gel optical materials

摘要: Hybrid sol-gel materials comprise silicate sols cross-linked with linear polysilane, polygermane, or poly(silane-germane). The are useful as optical identifiers in tagging and verification applications and, a different aspect, stable, visible light transparent non-linear materials. Methyl phenyl silicones, polyaryl sulfides, ethers, rubbery polysilanes may be used addition to the polysilane. polymers cross-link sol form matrix having high transparency, resistance thermooxidative aging, adherence variety of substrates, brittleness, cracking during thermal cycling.