Three-dimensionally patterned materials and methods for manufacturing same using nanocrystals
September 4, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesLow temperature thin films formed from nanocrystal precursors Photonic band gap materials and method of preparation thereof Method of making large-area semiconductor thin films formed at low temperature using nanocrystal presursors Method for depositing and patterning thin films formed by fusing nanocrystalline precursors Group IV semiconductor thin films formed at low temperature using nanocrystal precursors Glass matrix doped with activated luminescent nanocrystalline particles All-optical, rapid readout, fiber-coupled thermoluminescent dosimeter system Photonic band gap materials and method of preparation thereof Lithography exposure mask derived from nanocrystal precursors and a method of manufacturing the same Photonic band gap materials and method of preparation thereof InventorsAssigneeApplicationNo. 148521 filed on 09/04/1998US Classes:428/323, Including a second component containing structurally defined particles117/70, Growth accompanied by material removal (other than the product) from solution (e.g., solvent evaporation, osmosis)117/75, Forming a platelet shape or a small diameter, elongate, generally cylindrical shape (e.g., whisker, fiber, needle, filament) (e.g., VLS method)216/24, FORMING OR TREATING OPTICAL ARTICLE427/162OPTICAL ELEMENT PRODUCEDExaminersPrimary: Kunemund, RobertAttorney, Agent or FirmInternational ClassC30B 007/02AbstractA method for patterning materials according to a predetermined, three-dimensional pattern, as well as patterned materials produced by said methods, are provided. A template is prepared comprising a template material, the template having a plurality of pores therein, the plurality of pores comprising a negative of the predetermined, three-dimensional pattern. Colloidal nanocrystals sufficient to fill the pores in the template are also prepared. The pores in the template are filled with the colloidal nanocrystals. A quantum-dot solid is formed from the colloidal nanocrystals within the pores in the template, such that the colloidal nanocrystals are concentrated as close-packed nanocrystals within the pores in the template in the predetermined, three-dimensional pattern. If desired, a conventional solid may be obtained by sintering the close-packed nanocrystals within the pores of the template.Other References
Field of SearchHaving growth from a solution comprising a solvent which is liquid at or below 20 degrees Celsius (e.g., aqueous solution)Growth accompanied by material removal (other than the product) from solution (e.g., solvent evaporation, osmosis) Forming a platelet shape or a small diameter, elongate, generally cylindrical shape (e.g., whisker, fiber, needle, filament) (e.g., VLS method) | |
