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AssigneeUniversity of Virginia Patent Foundation
InventorsMool C. Gupta, Barada K. Nayak
Estimating the term…
The surface of a material is textured and by exposing the surface to pulses from an ultrafast laser. The laser treatment causes pillars to form on the treated surface. These pillars provide for greater light absorption. Texturing and crystallization can be carried out as a single step process. The crystallization of the material provides for higher electric conductivity and changes in optical and electronic properties of the material. The method may be performed in vacuum or a gaseous environment. The gaseous environment may aid in texturing and/or modifying physical and chemical properties of the surfaces. This method may be used on various material surfaces, such as semiconductors, metals and their alloys, ceramics, polymers, glasses, composites, as well as crystalline, nanocrystalline, polycrystalline, microcrystalline, and amorphous phases.
A method for texturing a surface of a material, comprising:
The method of claim 29, further comprising sharpening the nanospikes by at least one of chemical etching or ion etching, or any combination thereof after irradiating the surface.
A method for texturing a surface of a semiconductor material, comprising:
A method for texturing a metallic surface, comprising:
A semiconductor surface, comprising a portion on which pillars are formed with nanospikes atop the pillars by irradiating the surface with short laser pulses in a vacuum or gaseous environment surrounding the surface.
A metallic surface, comprising a portion on which pillars are formed by irradiating the surface with short laser pulses.
A system for texturing a surface of a material comprising:
A system for texturing a surface of a material comprising:
A system for texturing a surface of a material comprising:
A surface, comprising a portion on which pillars are formed with nanospikes atop the pillars by irradiating the surface with short laser pulses in a vacuum or gaseous environment surrounding the surface, wherein said surface comprises at least one of metal, metal alloys, ceramic, glasses or polymer, or any combination thereof.
A surface, comprising a portion on which pillars are formed by irradiating the surface with short laser pulses, wherein said surface comprises at least one of metal alloys, semiconductor, ceramic, glasses or polymer, or any combination thereof.
A method for texturing a surface of a material, comprising:
A method for texturing a surface of a semiconductor material, comprising:
A method for texturing a metallic surface, comprising:
A surface, comprising a portion on which pillars are formed with nanospikes atop the pillars by irradiating the surface with energy pulses in a vacuum or gaseous environment surrounding the surface, wherein said surface comprises at least one of metal, metal alloys, ceramic, semiconductor glasses or polymer, or any combination thereof.
A surface, comprising a portion on which pillars are formed by irradiating the surface with energy pulses, wherein said surface comprises at least one of metal, metal alloys, semiconductor, ceramic, glasses or polymer, or any combination thereof.
A method for producing a structure or texture, said method comprising:
A method for producing a structure or texture, said method comprising:
Dependencies are inferred from the claim text.