| EPSRC Reference: |
GR/M07373/01 |
| Title: |
INSB QUANTUM DOT LIGHT EMITTING DIODES GROWN BY LPE |
| Principal Investigator: |
Krier, Professor A |
| Other Investigators: |
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| Project Partners: |
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| Department: |
Physics |
| Organisation: |
Lancaster University |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
25 January 1999 |
Ends: |
24 September 2002 |
Value (£): |
213,691
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| EPSRC Research Topic Classifications: |
| Materials Characterisation |
Materials Synthesis & Growth |
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| EPSRC Industrial Sector Classifications: |
| Electronics |
No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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A novel liquid phase epitaxial growth technique - rapid slider liquid phase epitaxy (RSLPE) - will be used to grow self-organised InSb quantum dots onto GaSb, InAs & GaAs substrates. The influence of lattice mismatch and substrate orientation on the resulting epitaxy will be investigated using microscopy (AFM, SEM & TEM). Morphological studies will be followed by the encapsulation of single and multilayer Qdots and photoluminescence measurements will be made to establish the obtainable wavelengths and the size dependence of PL. A set of MOVPE grown samples will be provided from Oxford and some MBE samples will also be obtained from DERA for comparison in parallel.This project is device led materials research aimed at demonstrating a mid-infrared quantum dot LED, so further evaluation will be by including the InSb quantum dots within the active region of a GaSb LED. Because of the increased confinement, which has the effect o suppressing non-radiative Auger recombination, we expect to obtain more efficient electroluminescence with narrower spectral linewidth from such light emitting diodes at room temperature.The LEDs have practical applications, primarily in the next generation of infrared gas sensor instruments to improve health and safety in the environment and the quality of life.
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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.lancs.ac.uk |