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AssigneeMinnesota Mining and Manufacturing Company
InventorMark K. Debe
Estimating the term…
Article comprising a substrate bearing a microlayer which comprises uniformly oriented, crystalline, solid, organic microstructures and a method for preparing said article. The microstructures may be mono- or polycrystalline. In the preferred embodiment, the microstructures are of uniform shape and size. The articles can be prepared by (1) depositing a vapor of an organic compound as a thin, continuous film onto a substrate to provide a composite, and (2) annealing the composite in a vacuum sufficiently such that a physical change is induced in the orginal deposited film to form the microstructures. The microlayer can be overcoated with other materials to provide desired properties to the article. The articles of this invention are useful for many forms of light trapping, energy absorption, imaging, data transmission and storage, and gradient index applications.
An article comprising a substrate bearing on at least one major surface thereof a microlayer comprising an array of discrete, uniformly oriented, crystalline, solid microstructures, said microstructures comprising an organic compound wherein the molecule thereof is planar and comprises chains or rings over which .pi.-electron density is extensively delocalized.
An article comprising a substrate bearing on at least one major surface thereof a microlayer comprising an array of discrete, uniformly oriented, crystalline, solid microstructures, said microstructures comprising an organic compound selected from perylenes wherein the molecule thereof is planar and comprises chains or rings over which .pi.-electron density is extensively delocalized.
Dependencies are inferred from the claim text.