Electrochemical synthesis of quasi-periodic quantum dot and nanostructure arrays
Patent 5747180 Issued on May 5, 1998. Estimated Expiration Date: December 5, 2016. 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.
428/601, Discontinuous surface component205/124, Predominantly nonmetal electrolytic coating (e.g., anodic oxide, etc.)205/173, Electrolytically depositing material only within or above pores of anodic coating (e.g., electrolytic coloring, etc.)205/219, Electrolytic treatment205/324, Anodizing205/333, Oxide-containing coating (e.g., lead dioxide, etc.)428/469, Next to metal salt or oxide428/472.2, Aluminum or iron salt or oxide formed in situ428/614, Laterally noncoextensive components (e.g., embedded, etc.)428/620, Semiconductor component428/629Oxide
A method of fabricating two-dimensional regimented and quasi periodic arrays of metallic and semiconductor nanostructures (quantum dots) with diameters of ~100 Å(10 nm) includes the steps of polishing and anodizing a substrate to form a regimented quasi-periodic array of nanopits. The array forms a template for metallic or semiconductor material. The desired material is deposited in the nanopits by immersing the substrate in an appropriate solution and using the substrate as one cathode and inserting a second cathode in the solution.
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