Center for Semiconductor Physics in Nanostructures
 

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Facilities

Overview |
Growth & In Situ Characterization
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Growth and In Situ Characterization

OU MBE Facility: Four Chamber Intevac Gen II MBE system
  • Growth
    1. III-V growth chamber
      • Group IIIs: In, Ga, Al, and Group IVs: Sb and As. Dopants Si and Be

    2. IV-VI and fluorides growth chamber
      • Group IV: Pb and Group VIs: Se and Te. Fluorides: CaF2 and BaF2 , Rare earth dopants Eu, Tm and Mn

    3. Surface analysis chamber for Auger Electron Spectroscopy (AES) and X-ray Photoelectron Spectroscopy (XPS) with sputtering

    4. Omicron scanning probe microscopy chamber (STM and AFM)

  • Research
      • Growth of InSb/AlxIn1-xSb quantum wells
      • Low-temperature two-dimensional transport with a low-effective mass, a high g-factor, and a non-parabolic dispersion relation
      • Potentially lead to improved magnetoresistive sensors and faster transistors

UA MBE Facility

  • Growth
    1. Riber solid source MBE 32P III-V compound semiconductor growth chamber.
      • Sources include Ga, In, Al, As, and P with Be and Si available dopants. Includes RHEED system with digital pattern analysis, non-contact substrate temperature measurement, RGA.

    2. Riber solid-source MBE 32P compound semiconductor growth chamber.
      • Sources include Ga, In, Al, and As, with Si available dopant. Includes RHEED system with digital video pattern analysis, non-contact substrate temperature measurement, RGA.

    3. Vecco Gen II gallium nitride MBE growth system.
      • Sources include Ga, In, Al, N (RF plasma source), with Si and Mg available dopants.

    4. Riber solid-source MBE 32P ferroelectric growth chamber. (scheduled winter 2004-2005)

     

  • In-vacuo characterization (all also have ex-situ loading capabilities)
    1. Omicron RT-STM/AFM (room temperature scannin tunneling microscope/atomic force microscope)


    2. Omicron VT-STM (variable temperature STM)


    3. Omicron STM/SEM/SAM (has integral SEM to be used as spotting scope for STM, also scanning Auger for elemental identification).

UA Colloidal Lab

  • GBC 932-Plus Atomic Absorbtion Spectrometer. Lamps: 21 metals and metaloids.

  • UV-Vis: HP 8453 UV-Visible Spectrometer, photodiode detector, 190-1100 nm detection range

  • Spex Fluorolog 3-111 Spectrofluorometer, 450-W Xe lamp source. 240-1600 nm detection range.