Method for producing organic crystal film

Details Method for producing organic crystal film Method for producing organic crystal film

1993-03-23

1995-01-31

Breneman, R. Bruce

Single-crystal, oriented-crystal, and epitaxy growth processes;

Processes of growth from solid or gel state

Organic product

117 59, 117 63, 117902, 117919, C30B 2954

Patent

active

053851161

ABSTRACT:
A method for producing a crystal film of an organic compound from a molten liquid or solution of the organic compound on a substrate or between a pair of substrates, the substrate or at least one of the pair of substrates having on a part of the surface thereof a three-dimensional geometrical structure capable of controlling the direction of the crystal growth of the organic compound, and the other part of the surface thereof than the part having a three-dimensional geometrical structure being smooth. The resulting crystal film comprises a sufficiently large single crystal for application to a practical element with its orientation controlled in an arbitrarily selected direction.

REFERENCES:
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patent: 4684434 (1987-08-01), Thakur et al.
patent: 4793893 (1988-12-01), Thakur et al.
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"Morphology, liner & nonlinear optical studies of poly[1,6-di(N-carbazolyl)-2,4 hexadiyne] thin films (pDCH)" Appl. Phys. Lett.; vol. 54; Kanatake et al; (1989); pp. 2287-2293.
"Nonlinear optical properties of highly oriented polydiacetylene evaporated films" Macromolecules; vol. 18; Thakur et al. (1955).
Appl. Phys. Lett., vol. 59; Iwasa et al; (1991); "Nonlinear optical study of quasi-one-dimentional platinum complexes: Two-photon excitonic resonance effect"; pp. 2219-2221.
IEEE Photo Tech. Letter; vol. 3; Suhara et al; "Growth of Metanitroaniline Film Crystal with Controlled Orientation for Optical Waveguide Second-Harmonic Generation"; (1991); pp. 241-243.
Database Japio, No. 2-008 823, Japan Patent Information Organization, Tokyo, JP & JP-A-2-008 823 (Matsushita Electric Ind. Co. Ltd.) Dec. 1, 1990 "Abstract".

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