• Objects being studied

    • Surface and interface states
      • Adsorbates and passivating layers
    • Quantum Dots (QD) and Associated Structures
      • Type-I and type-II QD dots
      • Self-assembled QD structures
      • Low-temperature MBE-grown semiconductors with the second phase clusters
      • Quantum cellular automata
      • Semiconductor QD/dielectric and semiconductor QD-conducting polymer nano-composites
    • Nanowires
      • Ballistic and classical nanowires
      • Periodic arrays of nanowires
    • Photonic nanostructures
      • 3D-periodic photonic bandgap structures
      • Asymmetric non-linear nanostructures
    • Ferroelectric thin films and nanostructures for electronic and photonic applications
    • Micro-electro-mechanical systems (MEMS)

  • Technology Platforms

    • Molecular Beam Epitaxy (MBE)
      • MBE growth of III-V nanostructures including quantum wells, wires, dots and self-assembled dot structures
      • MBE growth of type I/II low dimensional heterostructures
      • Low-temperature MBE growth of cluster-containing semiconductors
      • MBE growth of III-V nitrides
    • Processing for nanostructures
      • Electron beam lithography and dry etching for nanostructure fabrication
      • Electrochemical etching of self-assembled nanoporous arrays
      • Passivation for control over surface state recombination
    • Nanoscale scanning probe techniques
    • Sol-gel processing of ferroelectric thin films and multilayer structures

  • Phenomena Studied

    • Formation of nanostructures
      • Quantum dot self-assembly
    • Electronic states and transport in nanostructures
      • Electronic structure of nanostructures, surface and defect states
      • Ballistic, quantum and classical transport in nanostructures
    • Optical phenomena
      • Luminescence in nanostructures
      • Recombination and photovoltaic phenomena in nanostructures
      • Optical non-linearity and switching
      • Optical effects in photonic bandgap structures
    • Information and nanostructures
      • Quantum information with quantum dot/wire arrays
      • Memory and information processing in networked nanostructures
    • Radiation interaction with semiconductors and ferroelectrics

  • Device-oriented structures considered

    • Electronic
      • Ballistic nanostructures for information processing
      • Non-volatile memory devices
      • Embedded capacitors
      • Solid state batteries
      • Quantum cellular automata
    • Photonic
      • Light-emitting/detecting nanostructures and composites
      • SHG/optical microwave generators
      • Optical non-linear elements
      • Photonic cavity structures
      • Purcell effect structures
    • MEMS
      • MEMS-based sensors and optical systems

GROUP PUBLICATIONS