| EPSRC Reference: |
GR/J37782/01 |
| Title: |
SOLID STATE INFRA-RED EMITTERS FOR THE 2-10UM BAND BASED ON INAS LOW DIMENSIONAL |
| Principal Investigator: |
Phillips, Professor C |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Physics |
| Organisation: |
Imperial College London |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
20 January 1994 |
Ends: |
19 January 1996 |
Value (£): |
135,772
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| EPSRC Research Topic Classifications: |
| Materials Characterisation |
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| EPSRC Industrial Sector Classifications: |
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Summary on Grant Application Form |
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The recently observed dramatic improvements (over bulk crystals) in the luminescence efficiency (up to QE + 10%) of narrow gap LDS based on InAs will be studied with temperature dependent PL and picosecond infrared pump-probe techniques. Theoretical predictions of the suppression of Auger recombination in type-II LDS will be tested quantitatively by measuring carrier concentration decay rates directly by psec pump-probe spectroscopy. Narrow gap LDS based on doping superlattices in InAs and InSb, and type-II heterostructures in InAs/In(As,Sb), InSb/In(As,Sb) and InAs/BaSb will be examined for the degree of Auger suppression and Pl efficiencies will be optimised. LEDs and cleaved-facet gain-guided laser diodes will be fabricated in these materials and their efficiencies, threshold currents and operating lifetimes will be correlated with the all optical measurements above. Auger and defect related recombination rates will be also measured by analysis of reverse bias biode I-V characteristics and the effect of the recently developed buffer layer growth schemes will be studied in detail.
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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.imperial.ac.uk |