Group Facilities
MBE
- We have facilities for arsenide, phosphide and nitride MBE growth.
- Two single growth chamber MBE systems
- One dual growth chamber MBE system
Optical Spectroscopy
- Cryogenic photoluminescence and micro-photoluminescence spectroscopy
- Picosecond time resolved spectroscopy (streak camera)
- Ellipsometry
- Spectrophotometer
- Micro-Raman spectroscopy
- Optical spectrum analyser
Topographical Profiling
- Two high resolution SEMs
- Atomic force microscope (AFM)
- Scanning tunnelling microscope (STM)
- Tally-step profiler
- Nomarski optical microscope
Cleanroom
- Two wet benches
- Photolithography equipment
- Ovens, including RTA
- Spinner
- Metalisation
- RIE dry etching
- Plasma deposition
- Nitrogen glovebox attached to an evaporator for air sensitive sample manipulation
A new class 1000 cleanroom is currently under construction and is estimated for completion by the end of September 2005. The new cleanroom will have an increased floor space of 130m^2 meters with 4 wet benches and an ICP dry etcher.
Device Processing
- Wet oxidation
- E-beam lithography
- ECR dry-etching
- Wafer dicing
- Wafer polishing
- Wedge bonder
Characterisation
- Power measurement
- Temperature dependent LIV
- Far-field measurement
- Temperature dependent high speed modulation (small and large signal)
- Photocurrent measurement
- Contact angle goniometer
- LED measurement system (total luminous flux measurements and angular dependent
measurements)
- Calibrated integrating sphere for making photoluminescence quantum yield
measurements
Synthetic Chemistry Laboratory
- Six fume hood – four fitted with vacuum/nitrogen manifolds for
handling air sensitive materials
- Four rotary evaporators fitted with diaphragm pumps
- Equipment for a wide range of synthetic procedures (air sensitive work,
polymerisations, metal catalysed reactions, low temperature reactions, etc.)
- Well equipped for material purification (chromatography, sublimations,
distillations, centrifugation)
- Dedicated glove box for manipulation of air sensitive materials
Analytical Chemistry Laboratory
Laboratory dedicated to the characterisation of new materials.
Analytical equipment includes:
- High pressure liquid chromatography (HPLC)
- Gas chromatography (GC)
- Size exclusion chromatography (SEC of GPC)
- 300MHz nuclear magnetic resonance (NMR) spectrometer
- Differential scanning calorimeter (DSC)
- UV-Vis spectrometer
- Fluorescence spectrometer
- Fourier transforms infra-red spectrometer
- Cyclic voltammetry
