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US 5,207,862 AGranted
Technique for epitaxial growth of oriented thin films of polydiacetylenes
AssigneeBell Communications Research, Inc.
InventorsGregory L. Baker, Sin-Doo Lee, Jayantilal S. Patel
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Abstract
A technique for the preparation of an oriented thin film polydiacetylene suitable for use in channel waveguides involves depositing an alignment polymer upon a substrate, rubbing the surface thereof to effect orientation, depositing the polydiacetylene thereon and heating to a temperature just below the melting point thereof.
Claims10
Method for the preparation of an oriented thin film polydiacetylene upon a substrate which comprises the steps of:
- (a) depositing a thin film of an alignment layer upon said substrate,
- (b) rubbing the surface of the alignment layer with a cloth, thereby inducing orientation therein,
- (c) depositing a soluble film of a polydiacetylene upon the oriented alignment layer,
- (d) heating the resultant assembly to a temperature above the glass transition temperature but just below the melting point of the polydiacetylene, and
- (e) cooling the assembly to room temperature.
2 more elements
Channel waveguide including an oriented thin film polydiacetylene deposited upon an alignment polymer.
Dependencies are inferred from the claim text.