Nanosheet Or Quantum Barrier/well (i.e., Layer Structure Having One Dimension Or Thickness Of 100 Nm Or Less) Patents (Class 977/755)

Cross-Reference Art Collections

Lipid layer (Class 977/756)
Mono-atomic layer on delta-doped sheet (Class 977/758)
Quantum well dimensioned for intersubband transitions (e.g., for use in unipolar light emitters or quantum well infrared photodetectors, etc.) (Class 977/759)
Superlattice with graded effective bandgap (e.g., "chirp-graded" superlattice, etc.) (Class 977/760)
Superlattice with well or barrier thickness adapted for increasing the reflection, transmission, or filtering of carriers having energies above the bulk-form conduction or valence band energy level of the well or barrier (i.e., well or barrier with ninteger^carrier/4 thickness) (Class 977/761)
  • Nano-scaled graphene plates
    Patent number: 7071258
    Abstract: A nano-scaled graphene plate material and a process for producing this material. The material comprises a sheet of graphite plane or a multiplicity of sheets of graphite plane. The graphite plane is composed of a two-dimensional hexagonal lattice of carbon atoms and the plate has a length and a width parallel to the graphite plane and a thickness orthogonal to the graphite plane with at least one of the length, width, and thickness values being 100 nanometers or smaller. The process for producing nano-scaled graphene plate material comprises the steps of: a). partially or fully carbonizing a precursor polymer or heat-treating petroleum or coal tar pitch to produce a polymeric carbon containing micron- and/or nanometer-scaled graphite crystallites with each crystallite comprising one sheet or a multiplicity of sheets of graphite plane; b). exfoliating the graphite crystallites in the polymeric carbon; and c).
    Type: Grant
    Filed: October 21, 2002
    Date of Patent: July 4, 2006
    Assignee: Nanotek Instruments, Inc.
    Inventors: Bor Z. Jang, Wen C. Huang