| EPSRC Reference: |
GR/M77376/01 |
| Title: |
FUNDAMENTAL SCIENCE AND APPLICATIONS OF ANTIMONIDE BASED HETEROJUNCTIONS AND QUANTUM DOT SYSTEMS |
| Principal Investigator: |
Nicholas, Professor RJ |
| Other Investigators: |
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| Department: |
Oxford Physics |
| Organisation: |
University of Oxford |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 April 1999 |
Ends: |
30 September 2002 |
Value (£): |
926,357
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| EPSRC Research Topic Classifications: |
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| EPSRC Industrial Sector Classifications: |
| Aerospace, Defence and Marine |
Electronics |
| Environment |
No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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We will investigate the new physics and applications that occur in crossed gap and narrow gap heterostructures based on antimonides. The Oxford MOVPE growth programme is in a world leading position and feeds into a number of other associated programmes in the area of TPVs, IR emitters, quantum dots, tunnelling and improved substrate manufacture. The main themes are:i) Interfaces. We will investigate monolayer and quantum dot interfaces in both coherent tunnelling through the formation of mini-gap and superlattice band structure, and vertical tunnelling. We will study the optical and electrical properties of InSb QD structures on both InAs and GaSb and at heterojunction interfaces. ii) Intersubband and Quantum Cascade Laser Physics. Antimonides have the unique property whereby subband properties can be modified by interband coupling and transfer due to the crossed gap alignment of the conduction and valence bands. This has potential uses in QCLs and other devices. We will look at the subband and interband coupling and lifetimes by looking at linear and non-linear spectroscopy, Raman scattering, subband emission studies and tunnelling.iii) Coupled electron-hole systems. We will use magnetotransport, cyclotron and intersubband spectroscopy and Raman scattering to investigate the possible new interactions.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.ox.ac.uk |