| EPSRC Reference: |
GR/H97499/01 |
| Title: |
PASSIVATION OF ACTIVE INTRINSIC DEFECT STATES IN CUINSE2 AND CUINXGA1-XSE2 SINGLE CRYSTALS AND THIN FILMS. |
| Principal Investigator: |
Tomlinson, Dr R |
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| Department: |
Electronic and Electrical Engineering |
| Organisation: |
University of Salford |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 August 1993 |
Ends: |
31 July 1995 |
Value (£): |
79,623
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| EPSRC Research Topic Classifications: |
| Materials Characterisation |
Solar Technology |
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| EPSRC Industrial Sector Classifications: |
| No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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CuInSe2 is one of the most efficient radiation-hard absorber layers so far developed for use in thin-film solar cells. Thin film solar cell employing CuInSe2 and CuInxGal-xSe2 alloy layers are currently holding world record efficiencies and widescale terrestrial applications are predicted; recent statellite tests indicate that the cells have exceptionally long operating lifetimes in space. This project investigates the effects of diffused and implanted hydrogen and deuterium on the optical and electrical characteristics of single crystals and thin films of CuInSe2 and CuInxGal-xSe2. The opto- electronic properties of these materials are dominated by compensating populations of intrinsic defects and there is a need to develop techniques for controlling defect state densities. The selective passivation of intrinsic defects in CuInSe2 and CuInxGal-xSe2 alloys through the use of hydrogen could lead to a tighter control of physical characteristics and ultimately improved device performance. In the proposed programme hydrogen and deuterium would be implanted over a range of implant energies and doses. It is also proposed to introduce hydrogen by diffusion from a plasma source in equipment designed for depositing thin films by CVD route. The characterisation of hydrogen-diffused and implanted material would be achieved with the aid of a range of structural, electrical and optical techniques.
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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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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.salford.ac.uk |