Single-crystal – oriented-crystal – and epitaxy growth processes; – Processes of growth from liquid or supercritical state – Having growth from a solution comprising a solvent which is...
Reexamination Certificate
2007-11-06
2007-11-06
Kunemund, Robert (Department: 1722)
Single-crystal, oriented-crystal, and epitaxy growth processes;
Processes of growth from liquid or supercritical state
Having growth from a solution comprising a solvent which is...
C117S069000, C117S070000, C117S927000
Reexamination Certificate
active
10947041
ABSTRACT:
The present invention relates to layered organic structures in which anisotropic crystalline seed layers control crystalline structure of the subsequent epitaxial organic layers. The structure comprises in sequence a substrate, a globally ordered crystalline seed layer with intermolecular spacing of 3.4±0.3 Å, and at least one epitaxial layer of an organic compound. The seed layer is comprised of disc-shaped molecules of at least one polycyclic organic compound with conjugated π-system. At least one layer of an organic compound is epitaxially deposited onto the seed layer. The present invention also provides a method for obtaining a layered organic structure. The method comprises forming of a globally ordered anisotropic crystalline seed layer on a substrate by means of the Cascade Crystallization Process. The seed layer has an intermolecular spacing of 3.4±0.3 Å and it is formed by rodlike supramolecules comprised of disc-shaped molecules of at least one polycyclic organic compound with conjugated π-system. Epitaxially depositing one epitaxial organic layer from the vapor or liquid phase onto the seed layer so as to obtain a layered organic structure.
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International Search Report, filed Feb. 11, 2005, Optiva, Inc., 7 pages.
P. Lazarev, K. Lokshin, and V. Nazarov, “X-Ray Diffraction By Large Area Organic Crystalline Nano- Films”, Mol. Materials 2001, vol. 14, pp. 303-311, pp. 303-311.
Kunemund Robert
Nitto Denko Corporation
Westerman, Hattori, Daniels & Adrian , LLP.
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